The $5 telescope is actually free: you are paying for the packaging. :-)

@PrincessLorelei

4 жыл бұрын

That makes sense because it's the only component there that has a use.

@GewelReal

4 жыл бұрын

And the "tripod"

@Jesus-vs4rc

3 жыл бұрын

Gewel ✔️

@tajhealthnature8570

3 жыл бұрын

😀😀😀😀

@dadolphinplayz

3 жыл бұрын

everything is free if nobody catches you

If I build a telescope using several hundred pounds of spinning liquid mercury can I say I have an 100,000$ telescope?

@notaname8140

5 жыл бұрын

Liquid mirror telescopes are pretty cool, slightly limiting that you can only really point it directly up though

@ElectricityTaster

5 жыл бұрын

Yes, you have my permission.

@Sparrow420

5 жыл бұрын

You better get on that shit now cody, Im waiting to see you upload a video with a bad mercury pun

5 жыл бұрын

Oh, wait. what if you made an alloy that solidifies in room temperature and then you can stop the spinning ;)

@pegasusted2504

5 жыл бұрын

@ or why not just spin the room?

Chromatic aberration lets you see the Moon in color. It's a feature, not a bug.

@MyRadDesign

5 жыл бұрын

Poor alignment of the optics in the cheap refractor gives you red fringes on one edge of the Moon, blue on the other. All for no extra cost!

@jameswalker199

4 жыл бұрын

See the redshift and blueshift of the universe, exaggerated for clarity!

@amyshaw893

4 жыл бұрын

@@MyRadDesign Red on one side, blue on the other? that means you can use 3d glasses and see the moon in 3d!

@loganatori6117

4 жыл бұрын

@@amyshaw893 profile pic is accurate

@singularityg3695

4 жыл бұрын

demonic_pug watches 0__0 no thats an actual image of saturn’s moon titan

I got one of these pieces of trash for my eleventh birthday. It was a bit depressing. But, it brought me closer to the stars. It taught me about what could be. I followed that to the point where I am now, thousands of dollars later and taking my children on a tour of the seeable universe. That garbage started that. Never underestimate the power of a drug store science toy in the hands of the right child

@charimuvilla8693

3 жыл бұрын

While this is true, it can be a hobby killer for many kids that would otherwise be interested in astronomy

@eekee6034

3 жыл бұрын

I'm glad it worked for you, but my experience was thinking I was no good when something cheap wouldn't work right. Granted, I might have had a better perspective if my mother hadn't kept telling me, "A bad workman always blames his tools."

@icomeinpeace2717

3 жыл бұрын

@@charimuvilla8693 thank god i got a Celestron first scope as my first

@nixl3518

2 жыл бұрын

@@icomeinpeace2717 Perhaps it wasn’t God that you had to thank, but more like your dad or somebody real. 👺

@icomeinpeace2717

2 жыл бұрын

@@nixl3518 or myself

As a person who doesn't live in the US, I have to say that a telescope is the last thing I would expect to buy at a drugstore.

@SamiiYou

5 жыл бұрын

Yeah in Europe you would just get one fron Aldi.

@davidgreen5099

5 жыл бұрын

Many drug stores here have much stuff. If you're curious look for a picture of a CVS pharmacy.

@ErikB605

5 жыл бұрын

@@SamiiYou But you can order one from lidl.

@adriantp_

5 жыл бұрын

Drug stores here tend to have random garbage products near the toys, the "as seen on TV" aisle, and the greeting cards. Pretty sure the intent is "oh crap I forgot a gift". Or to promote caving to nagging children. Or both.

@koogco

5 жыл бұрын

@@adriantp_ In Denmark it is just skin products, sunscreen maybe shampoo and cheap glasses.

1:20 I would like a Hubble Space Telescope please. A carrier bag as well, thanks

@SupremeRuleroftheWorld

5 жыл бұрын

new or used? i know a guy that has one slighty used, one owner.

@unf3z4nt

5 жыл бұрын

Good luck finding an 8 foot telescope on sale.

@JustSomeCanuck

5 жыл бұрын

The carrier bag for the Hubble Space Telescope is included! Bonus large, orange, external fuel tank and two solid rocket boosters. Fuel is extra.

@nickrichards3354

5 жыл бұрын

How much is packaging?

@daveh7720

5 жыл бұрын

@@JustSomeCanuck Oh, I'm sorry. The Hubble Space Telescope travel kit has been discontinued.

"The kind you put field artillery on" It's five minutes later and I can't stop laughing

@oldfrend

3 жыл бұрын

my mount and tripod cost $500 and i'm pretty sure a howitzer is an optional attachment. the legs are steel tubes probably 3 inches thick.

I first saw this video 1.5 years ago and the idea of a backpack telescope intrigued me. I was getting into hiking and didn’t know such a thing existed. I now have 3 telescopes including a big dob and have been totally taken with the hobby. This one video changed my life and introduced me to amateur astronomer. I am absolutely hooked! Thanks Scott!

Can we see some pictures you took with your water heater, Scott?

@spiritas5372

5 жыл бұрын

Probably doesn't have any as dobs are great for visual but not for photography.

@Regolith86

5 жыл бұрын

@@spiritas5372 Depends on what you're imaging. It's true they're no good for anything that requires a long exposure, but bright objects like the moon and planets that can be taken with short exposures should image fairly well.

@ahaveland

5 жыл бұрын

@@spiritas5372 You should explain why - because the target rotates during long exposures, even if the target is tracked, but a dob is certainly good enough for short exposures. An aligned equatorial mount driven at 1 revolution per sidereal day is a bit beyond the average beginner!

@stamasd8500

5 жыл бұрын

@@ahaveland Not necessarily. I'm currently building one with an Arduino, stepper motor and a couple of gearboxes plus some bits of hardware. Total cost for parts was under $100 so far. Eventually I want to make it self-aligning with a couple more steppers, GPS, compass and gyroscopes.

@ahaveland

5 жыл бұрын

@@stamasd8500 I'm building one too with arduino, gps, steppers and all 3D printed gears. Hardly a beginner project though!

"There's a lot of cheap telescopes that would show you glorious pictures of the nebula which you can't really take unless you have the Hubble Space Telescope". Don't know why but I laughed SO hard at this part.

@martialme84

5 жыл бұрын

Same. Well i got a good chuckle out of it, at least.

5 жыл бұрын

I think I know. It was a joke! ;-) ;-) :-D

@666Tomato666

5 жыл бұрын

nah, I think some of those pictures (at least in visible spectrum) could be taken by something cheaper: like the VLT or Keck telescope

@anoonumos

5 жыл бұрын

best thing is that he did not even moved a muscle well saying that lol

@johnfrancisdoe1563

5 жыл бұрын

666Tomato666 That sentence made me actually LOL. Not everyday you get to say that ...

"I'm a bit of a nerd..." said, straightfaced while sitting in front of about 12-1500 records

@oy3930

4 жыл бұрын

Hmm, it seems like theres a bit more than just 12 records...

@johncrowerdoe5527

4 жыл бұрын

@@oy3930 He's "DJ Scott Manley"

@Bunny99s

4 жыл бұрын

@@oy3930 Of course he meant 12 (hundred) to 15 (hundred) :)

@oy3930

4 жыл бұрын

@@Bunny99s i know, i was simply joking around :)

@parkermonette5397

4 жыл бұрын

@TJ Thunder That comment made me far more happy than it should have

Observatory employee A: What's that noise coming from our dumpster area? Observatory employee b: it's ok, it's just Scott Manley searching through our dumpster again.

@MikinessAnalog

5 жыл бұрын

Manley: Oh what a hunk of man he is LOL.

Vivitar : "We don't like the term chromatic aberration, We would prefer to call it an RGB upgrade to your experience, Thank you".

@General_Griffin

5 жыл бұрын

RGB = Power

@RealUnimportant

5 жыл бұрын

it's an NTSC telescope!

@jochem_m

5 жыл бұрын

Telescopes by Razer

@mayankshrivastava3554

5 жыл бұрын

Linus Tech Tips: These telescopes increase performance.

@martyzielinski2469

5 жыл бұрын

No, RGB is short for red, green, blue, when discussing chromatic aberration.

“Because I’m a bit of a space nerd, if you haven’t noticed” As he sits in front of a vinyl LP collection bigger than the library I used when working at a community broadcaster just before CD’s came out and still bigger than the CD collection that same broadcaster had when we switched to downloadable sample content straight from the record distributors. Just how far does your Nerdy McNerd Nerd stretch Mr Manley?

@wingsofwrath4647

5 жыл бұрын

Oh, he used to be a DJ as well, so of course he would have a huge LP collection...

@briangonigal3974

5 жыл бұрын

That vinyl collection was no doubt part of the reason this video kept reminding me of the ones where some audiophile compares a cheap Crosley record player with their Audio Technica turntable.

@piro216

5 жыл бұрын

To be fair, his entire KZread channel is about being a nerd...

@glarynth

5 жыл бұрын

For one thing, that guitar is actually a video game controller.

@MilitantPeaceist

5 жыл бұрын

Robert Price no way, are you sure? I can see a chrome tremolo, chrome tuning heads and strings. Can only see 1 pick up but I imagine there is another 1 or 2 white ones washing out with the pick guard. Guessing it’s a Fender Squire.

He spent the first half of the video insulting a children's toy that cost $5

@ClashGardener

4 жыл бұрын

It was hilarious. I actually have one of those it works ok on a good day Haha.

@DarrylLearie

4 жыл бұрын

William Macgregor I do think that sometimes cheaply made products are so bad they in fact offer no value - and a person should always get some kind of value for their money. Looking at the moon with my own eye still renders a better image than using the $5 telescope he explored in the video.

@FreeStuffPlease

4 жыл бұрын

Remember, the original retail price was 20$.

@zmaj6524

4 жыл бұрын

LOL Cant wait to see it, haven't pressed play yet.

@ami_269

4 жыл бұрын

Google 'chutiya'. He is one.

I still remember one of my earliest telescopes: i think it might have come from SEARS, and it was cheap as dirt. It also had a plastic eye piece lens, and when i told my father that my xmas gift was crappy( i couldn't say 'crappy' to him when i was 12) , he was upset and wanted to have a look thru it, and to his credit, he admitted it was of poor quality. It was a, maybe a 3' reflector and my binocs had a much more enjoyable image. I soon saved my money and purchased a Tasco 9te2 refractor. A good little scope. Its difficult to explain to a novice that 'power isn't that important, and that objective size and quality are much more important! i always recommend they get a pair of binoculars and get familiar with the night sky first, but most don't listen.

@oldfrend

3 жыл бұрын

i'd read that when i first started. luckily i have means so i just went and splurged on a $700 setup (130mm reflector with parabolic mirror). even then i can see why magnification isn't super important. even at the maximum magnification my lenses can reach (250x or thereabouts), i can only see jupiter as a brownish blob with a few bands. certainly nothing like the magnificent photos from hubble.

@glenm99

6 ай бұрын

I have an opposite sort of story: a telescope that my uncle bought at Sears about a million years ago. He gave it to me when he moved away, and even though the images were all clear, for years I thought it was junk because it had a small lens and I couldn't see all the nebulae etc. But then I actually started learning astronomy and looking through other scopes, and I discovered that the optics in that old scope are very high quality! I still have it, because it has its uses.

You'd be better off with a reasonable pair of binoculars than that cheap telescope.

@jpardoa94

5 жыл бұрын

Can confirm, my father has some milspec binos from Vietnam-Cambodia era and although they are not as magnifying as a proper Tele, they have come in handy for watching eclipses, since they have obscuring filters that you just snap in front of the lenses

@STho205

5 жыл бұрын

Robert that is correct. Good sky grade binoculars will give you vivid views of Orion Nebula, the Moon, Andromeda, full constellations, you can tell the planets are blobs-not stars (about it) but with steady arms or a camera tripod you can see the four largest moons of Jupiter. Much less skill and patience required. Some telephoto cameras do quite well with planets, but you are looking at a digital video image, not direct optics. I carry binoculars whenever i take my telescope out (about three nights a week but I live on a mountain 10 miles from the middle of nowhere in a national forest) Cheap refractors ($50-100) are however how children should start. Keeps them from believing they are being tricked by Masons at NASA and PhotoShop into believing the planets are actually round objects millions upon millions of km/miles away.

@TrailBlazer46

5 жыл бұрын

Couldn’t agree more. I’m an avid amateur astronomer and space nut as most others on here. Growing up when I first took an interest in astronomy I didn’t know what to get. My great uncle and aunt who build there own telescopes and buy their van based on if it can fit there biggest telescope when they travel to their club locations (awesome!) had me start out with just a good pair of binoculars. That way I could see the moon and many other planets to a certain degree and learn where everything was. If I was to of bought a big telescope that cost much more and really didn’t catch the “fever” for astronomy so to speak like I did the telescope would of gone to waste. Totally believe beginners should use a good pair of binoculars to start out. Thanks!

@Kevin_Street

5 жыл бұрын

I was thinking this too! My Dad's sixty-year-old field glasses can give a better view of the Moon than that Vivitar. Not as steady, though.

@blahfasel2000

5 жыл бұрын

@@jpardoa94: Having less magnification actually is a feature when you are just starting, since with a larger field of view it's easier to find the things that you want to look at. That's why you typically have a finder scope attached to your telescope, to provide a larger field of view for aiming purposes than the main telescope does.

Shouldn't it be a hundred 5 dollar telescopes vs. ten 50 dollar telescopes vs. one 500 dollar telescope? Interferometry ftw! 😉

@PaulPaulPaulson

5 жыл бұрын

@Lord Hosk I'm out of duct tape, will have to wait until monday to buy new one.

@merendell

5 жыл бұрын

You'd spend more on all the cameras to take the images to the computer which would also be more expensive than the 500 dollar telescope just to make the comparison.

@PaulPaulPaulson

5 жыл бұрын

@@merendell For comparison under equal conditions, all setups would be allowed to use 100 cameras and a super computer. It's not the fault of the cheap telescopes that the big one can't make much use of it. 😁

@PaulPaulPaulson

5 жыл бұрын

@Charles Yuditsky I wonder if you could make lenses from scotch tape 🤔

@danieljensen2626

5 жыл бұрын

@@PaulPaulPaulson You actually can't use computers for optical interferometry, it has to be done with actual optical hardware. You basically just need a single camera at the end then, after you've merged all the beams. Setting up a proper optical interferometer with 100 telescopes would probably cost you like $10 million though. Maybe more. There's a reason there are only like 2 places in the world using optical interferometry, it's waaaaaay harder than radio.

When my finders scope is bigger than the telescope

That $5 telescope would probably work better as a potato cannon than a telescope.

@unnamedchannel1237

4 жыл бұрын

Makes you wonder why the produce this , just more for the land fill I guess

"Vivitar" is one of those zombie brands that used to be a reputable company that made cameras & lenses. The name was sold off when they went bankrupt.

@MichaelSteeves

5 жыл бұрын

I have a zoom lens from them made in 1978. At the time it was very nice quality.

@alpham777

5 жыл бұрын

yup now they are in the cheapo section at target up front for all your cheap phone supply needs lol.

@ksmackvolleyball

5 жыл бұрын

Yep, I once bought a Vivitar camera and it was a piece of junk. They sucker you in cause they have low prices, but the quality is so bad you can't really use them for anything.

@geepeerces

5 жыл бұрын

They never actually *made* anything themselves, it was all contract made overseas, by various makers... they did sell some decent prime telephoto lenses in the mid 70s, but most of their stuff was "C" or "B" quality. I had a 600mm f/8 from them, with a Pentax K mount adapter, that I used with my Pentax MX in the late 70s btw, the founders died, and the name was sold by the estate, its been resold a few times, wikipedia says its now owned by Sakar International who's big into junky stuff sold at mass market retailers

@ksmackvolleyball

5 жыл бұрын

@@geepeerces Ah okay, thanks for the info. Alot of companies actually do the same thing, have someone else make a product, and they simply stick their brand on it. Polaroid is a company that used to exist, but they too went bankrupt. However, the Polaroid brand name still exists so companies can make a product and stick the "Polaroid" name on it. I guess they feel people will buy a product if it has a recognizable name on it, as opposed to one that doesn't.

I prefer gravitational lensing for my telescopes.

@ahaveland

5 жыл бұрын

Tricky to set up in the garden though...

@outsider344

5 жыл бұрын

True, but have you checked the price on mass these days? Who can afford it?

@kazsmaz

5 жыл бұрын

@@outsider344 your mum

@troliskimosko

5 жыл бұрын

The Virtual Scotsman you ruined this golden thread

@FourKelvin

5 жыл бұрын

gravitational lensing caused by the mass of yo mama

The two things that really drew me to vinyl were the expense and the inconvenience.

@eNons3nse

4 жыл бұрын

I know you're quoting a meme, but Scott's been a DJ for a long time and only recently were non-vinyl alternatives even viable or commonly available. Vinyl really sucks in some ways, but it's also very easy for DJ's to manipulate, which is why it was popular for so long in the electronic music scene. Most electronic music before 2005 or so was only available on vinyl. If you've been DJing for more than 10 years, you have a vinyl collection, and not really by choice. Lord knows I'd like to get rid of mine, but digital versions of these tracks don't exist and I've been lazy about ripping them.

@hueyiroquois3839

4 жыл бұрын

I first got into vinyl, because it's a shit ton better than cassettes.

@GewelReal

4 жыл бұрын

@@eNons3nse wait, he's been a DJ?

@Smokeybear69420

3 жыл бұрын

@@GewelReal Yea, he is a DJ.

Funny and informative, he actually explains a lot of the stuff that others take for granted: why is coated optics important, what is the difference exactly between a cheap and an expensive eye piece, etc. Very helpful!

“Because I might ruin my five-dollar telescope” is not a reason I have ever heard for anything before, and I’m delighted.

@lawrencedoliveiro9104

4 жыл бұрын

And it has worse optics than something he found in the trash ...

turn it into a sun projector. That's what I did with some $5 binoculars. Might be good enough to see some sunspots.

@RoyontheHill

5 жыл бұрын

I tried that last week and I'm still seeing high quality images of the sun too this day... please make it go away.

@ScientistDog

5 жыл бұрын

That's not a very good idea considering it uses plastic lenses, even the tube is plastic.

@sleepib

5 жыл бұрын

​@@ScientistDog Well, if you melt it it just ends up in the trash slightly faster than it would have otherwise. That said, it's only 50mm aperture, so there's not a whole lot of light being gathered, and you can partially block the objective if you're still worried about melting something.

@RoyontheHill

5 жыл бұрын

@@ScientistDog dude don't look at the sun .

@Valenorious

5 жыл бұрын

@@RoyontheHill Well, sleepib did mention to use it as a projector. Implying the image is supposed to be projected on a screen behind it, not your retina. But yeah, all that light focused through plastic lenses is going to make it melt in no time.

Thanks for the suggestion on the 70mm travel scope I have been thinking about getting one for a while and wasn't sure. But after your view that has convinced me. Thanks again

Hey Scott, that was awesome. Thanks for sharing your setups with us! Now I want to hear more about the Dobson... ;)

next video: *$5mln rocket vs a $50mln and $500mln rocket*

@tinldw

5 жыл бұрын

Davide D'ippolito Electron vs F9 vs what?

@davidedippolito6770

5 жыл бұрын

@@tinldw the 3rd rocket can be the shuttle (around 450mln/mission)

@tinldw

5 жыл бұрын

Davide D'ippolito but you can't get it anymore

@davidedippolito6770

5 жыл бұрын

@@tinldw it was a joke...

@edwardotto4053

5 жыл бұрын

Problem 1) The Getaway. How are you going to steal one? LOL

Cardboard boxes are just low-tech fairings

@grantexploit5903

5 жыл бұрын

r/Showerthoughts

@UNSCPILOT

5 жыл бұрын

And foam is just a lowtech Payload adaptor

@InventorZahran

4 жыл бұрын

Soda cans are just low-tech cryogenic fuel tanks...

This is wonderful. Please do more videos about telescopes.

“ I can feel some static electricity, or perhaps it’s the excitement” 😂😂😂

@wilboersma9441

3 жыл бұрын

3:12 i was about the comment that too but i thought i should check to make sure someone else didn't beat me to it

Scott is a space nerd?!?! EDIT: Would love to look through that vinyl collection :)

@daniellowell8844

5 жыл бұрын

Who Knew?

@garysoulby8755

5 жыл бұрын

I’ll bet there’s a Proclaimers album in there?

@nmccw3245

5 жыл бұрын

It’s all polka music.

Please do a more detailed picture benchmark with all your telescopes, that would be so awsome! :)

@joelsfallon

5 жыл бұрын

Next video $50,000 vs $500,000 telescope! 22” RCT with all the bells vs 1 meter planewave observatory grade RCT

@NetAndyCz

5 жыл бұрын

@@joelsfallon I really want a comparison with private space based telescope. The atmosphere ruins the quality of shots regardless of how many fancy lenses and mirrors you use.

OOOOOH I had that exact Vivitar telescope a few years ago! The memories! The hazy, poorly focused memories! XD

@genelomas332

3 жыл бұрын

Hazy and poorly focused... You sure weren't just drunk at the time...? haha ;)

@lanceleone2704

3 жыл бұрын

@@genelomas332 I mean, I probably was, but I remember that telescope being t r a s h all the same XD

@genelomas332

3 жыл бұрын

@@lanceleone2704 hahahaha 👌

@evertonporter7887

Жыл бұрын

This isn't the same Vivitar brand that were known for their quality camera lenses years ago, especially the original Series 1 range. It's such a shame the name is being put on such crappy products now.

I learned so much from this. Thank you so much for the celestron 70mm

@rasmusstorjohann645

3 жыл бұрын

They also have an 80mm, maybe a recent addition?

You space nerds with the not-a-water-tanks, first starhopper and now a telescope.

The moon pic on the 5$ telescope box is from the far side 😂

@archenema6792

5 жыл бұрын

It was on the Chang-e.

@stivi739

5 жыл бұрын

Haha it is to

@linecraftman3907

5 жыл бұрын

At least it's not pluto

@stamasd8500

5 жыл бұрын

Wow the Vivitar scope can see that! Sold!!

@BaronVonQuiply

5 жыл бұрын

.. you don't know where I'm setting up my scope.

Hahahaha!!! You killed me!!! "Is it static? No! It's the excitement!"

Scott really like this video. It was very informative. Keep up the good work

Hah! LOL I have the _exact_ same $5 piece of junk telescope! I bought it exactly under the same conditions: it was a drugstore, it was MSRP $20 but discounted 50% (don't think I got to pay only $5 though), and the review is very accurate in all aspects! In the end, it's indeed pretty much a worthless piece of equipment, because it has lots of magnification you can't really use; and the mount is so flimsy your breath makes it oscillate, thus adjusting _anything_ throws _everything_ off. Plus, there's chromatic aberration in the image like it was made by a game developer from 2013, and (the aperture being too small) the image is too _dark_ to really see anything you can't see with the naked eye (so lots of stuff); and having relatively highly magnified dark invisible stuff isn't of much use. Unfortunately, getting it to sharp focus is also quite the challenge, with the gossamer web mount and flimsy telescope body, so in the end, the image can't really be brought to actual focus, although sometimes part of the image will seem focused, but not all of it (the lenses in it are nothing good, the eyepiece one is plastic). That noticeably blurry picture that was shown is pretty much a good indication of what you can get it to do, except in person it's a bit worse, because it never stops moving altogether, so on top of the blurriness and aberration, it's always wobbling-it can get frustrating. In the end, this telescope is a mild scam: Putting it near checkout lines, highly discounted, at ridiculously low prices, in venues in which you have no business buying optical equipment (like drugstores), and also targeting people who themselves have no business buying optical equipment, but might want to surprise a niece, or a grandson-all that is part of the con-it's a bit like the "speakers in a van" con (a scam that, incredibly, just won't die), in which the trickster drives around in a van, approaching people in traffic lights and offering supposedly high-end speakers (in reality, total crap) at impossibly low prices. Considering I bought this telescope almost ten years ago (and it was in the U.S.), and they're still making and selling it today, the 4-9 bucks-learning fee that you pay is enough to sustain the enterprise. 😂

@linecraftman3907

5 жыл бұрын

Did you try looking through it at Earth?

@jeff-hd9og

3 жыл бұрын

my poor grandfather bought me one a couple years ago for something like 40 dollars

Scott Manley channeling his inner AvE and doing a BOLTR video ;)

@catfish552

5 жыл бұрын

If he had filmed the video overhead on a chipboard workbench, he could do a decent Big Clive impression as well.

@quaidbergo

5 жыл бұрын

Scott needs to work on his unboxing action - this was very tame, needs more mini-chainsaw.

@craigeaton5510

5 жыл бұрын

@@quaidbergo While watching the unboxing, I was inwardly wishing that SM would toss the contents across the table and yell 'TIME!'

@quaidbergo

5 жыл бұрын

@@craigeaton5510 Keep your scope looking nice.

When you said 100mm, twice the aperture (11:02) I immediately thought; "That is a bit misleading" and then you immediately followed up with 4 times the light gathering capability! Spot on mate. Lots of people don't understand ratios in areas (or volume for that matter). Great to hear someone properly explaining himself. Thanks for all the great videos.

Just wanted to say thank you for doing this comparison. I was planning on getting the more expensive one at a later date, but you showed here that the mid-grade ($50) one is more than great for someone starting out in astronomy. Grabbed the 70mm one you recommended as well as the phone mount because why not? $66 on amazon currently. Still getting the better one, but I figured to start now I can get the travel scope!

What a strange place to put a water tank

@DistracticusPrime

5 жыл бұрын

I have a 24" refractor in my laundry room. But I can't use it because some plumber put it in line with my water supply.

@swinde

5 жыл бұрын

If you are referring to the "Phillips" package, I think that is a box of florescent lamps.

@chlorinegivesmelife9792

5 жыл бұрын

@@DistracticusPrime You do mean that in terms of the OTA length, right? :D

As sketchy as the $5 Vivitar is, it is MILES better than the one used by Galileo!

@RFC3514

5 жыл бұрын

Is the mile the SI unit for telescope quality?

@joost199207

5 жыл бұрын

If Galileo can do all that science with his crummy telescope, then it's good enough for the kids.

@STho205

5 жыл бұрын

I do teach historic astronomy to kids and adults, using graduations of cheap scopes that are optically equivalent to those used between 1500 and 1750AD. Cheaper refractors and AZ mount long tube reflectors (usually 114x900mm and 60x400mm) for the Newton variants. You'll be amazed what you can see in a very dark deep country winter night. They do a marvelous image of Orion, Venus phases, Jupiter and the kids can see Saturn is Saturn. The simple cheap scopes are also easier for the novice to control. Then I show them my current scopes.

@Hagledesperado

5 жыл бұрын

Is this something you assume, or something you know?

@STho205

5 жыл бұрын

Hagledesperado. We know the specs on the telescopes of those eras. We know the relative dimensions and the quality of the early lenses for the refractors. The size and quality of the Newtonian mirrors. Some artifacts still exist. Then it is a matter of finding scopes on the market that approximate these measures. The views should match. Optics is math and quality of lens and mirror.

Scott can make any type of video entertaining and interesting. I would totally be down for a long conversation about your water tank haha.

This was so much fun! I had that vivitar when I was 8. I'm currently looking at $500 telescopes.

Appears that I have Hubble right in my back yard. My orion nebula shots came out quiet nice. 😜

for 5 bucks, I got a set of glass lenses and some tube-pieces from the hardware store, some black pasteboard and even a sheet of sun-filter. It's a great little telescope to observe the Moon or the Sun. I've been able to see sunspots with it.

@zacharyhandy9606

5 жыл бұрын

Cool

Scott, Great info for aspiring astronomers' and their parents or significant others! I hope it reaches many people and gets them a better start in an astro hobby or career by letting them know it doesn't really cost a fortune to have nicer, more useful equipment! Thanks for putting this video out there! Both thumbs up and even another if I had a third hand....!

Great video, Scott. I wish you had made this video before I bought the exact same cheap telescope back in 2014.

Your coffee is getting cold 😱

Hey now! if that $5 scope sparked some kids interest in astronomy, that's $5 very well spent. BTW that moon shot @13:55 was gorgeous!

@lawrencedoliveiro9104

4 жыл бұрын

Not to mention it was the other way round compared to the others.

@lucasthompson1650

4 жыл бұрын

Damn right. An engaging and determined personal interest in any field of science can bring up their grades across the board, not just science classes. If you don't have $5, take the kid to a local planetarium or a skywatching meetup some summer night.

@alexrowland

4 жыл бұрын

Lucas Thompson Do planetariums not charge for entrance? There’s none around me, and I haven’t been to one since I was a kid.

@lucasthompson1650

4 жыл бұрын

@Alex Rowland To get inside and attend attractions/events, yes, but most (all?) of them have astronomy club meet ups on clear summer nights that can be attended for free. If there isn't one near you, there's probably at least a skywatchers/astronomy club somewhere in your vicinity.

@alexrowland

4 жыл бұрын

@@lucasthompson1650 Thanks for responding, that's great to know! I live in the desert of southern Utah, so it would be a great place for an astronomy club, I'll have to see if there's any close by.

And yet another video of great interest... Ty Scott ! Buying the 70€ right now

Children get excited and bored of things very fast. 20 bucks is the perfect price to pay for a telescope that child might use 3 times before getting bored. They will pick it up again when they're in their mid teens to look in windows...

@buggsy5

5 жыл бұрын

They might do that with the $50 scope. The $5 scope is so bad that they might use it once or twice then throw it in the trash. What child is going to pursue astronomy if unable to see the craters on the moon with their first scope. Even Galileo had better optics.

@mar504

5 жыл бұрын

20 bucks would be better spent going to an observatory and getting a great view of the sky.

@em1osmurf

5 жыл бұрын

the best function of my first telescope was to pound a concussion into a neighbor kid with the eyepiece (made of steel back then).

@DefinitelyNotHaraku

5 жыл бұрын

@@buggsy5 You're right, I was given a similar quality telescope when I was around 6 and ended up as an electrician. More seriously, that vivitar is good enough for something that's probably going to end up broken in a couple weeks anyway.

@nitrousoxide2265

5 жыл бұрын

What? Telescopes are for looking at stars? I thought they were only built to look in peoples windows. Ive been using it wrong this whole time..

Now you can have the 1993 version of the Hubble telescope in your very own home.

Thank Scott looking at your videos is like taking a astronomy course.

So I am subscribing to your channel right now. Ive been a viewer for 'bout a year now- I was hooked once I discovered just how much you know your "stuff"! Well tonight, Im sold... soon as Im done typing this, Im clicking "subscribe". I aboslutely love the content you provide on your channel; Just before this I was watching the episode on the generally counter-intuitive nature of orbital mechanics, with your example of a baseball thrown down from the ISS, etc. Its wonderful to hear someone that is legit explain some hi-speed knowledge, in detail, with no hint of BS whatsoever! So Mr. Manley- (you have the EXACT same name as my totally *agro* HS gym, PE, & study hall teacher from the 90's, unfortunately lol) Do you want to hear something that just made me laugh my ass off this evening? About 3 months ago, I was riding my bike home from work one Saturday morning, and I passed a box of various odd and ends, clothes, magazines and such, sitting out on the sidewalk, at a residential intersection. This is what we call a "free box" around here; it is stuff that someone couldnt sell at their yard sell; threw out of the college-bound child's room before moving, etc. After about 2 minutes of digging, I screamed with like a little boy on X-mas morn- I had just located what appeared to be a telescope at the bottom of the box, complete with the shiny aluminum tripod!!! I looked over my shoulders; no one was observing; and quickly hustled it into my book bag. Im kind of broke and ghetto at this point in my life (living in my van in a "collective", as the flop-house "maintenance" guy, for soon to be my 3rd Winter, lol) And heaven had just opened up, the ray of light came down, & handed me my belated childhood wish... After a couple of nights where my personal energy, motivation, schedule, and weather all aligned for me to give it my best shot at having the supposed life-changing experience of actually seeing Saturn's Ring system (EVERY pro from multiple big-time sci-fields ALL say the same thing) ... I discovered why I found that damn ol telescope where I did: I couldnt even look at a full moon without jammin my eye completely against the eyepiece; and IF I could start to see details & line it up, the image jumped around like I was in an earthquake on acid!!! F*ckin POS garbage. Discouraged, Im thinking to myself "to hell w this; waste of my time", etc. So tonight. Im listening your channel play through back-to-back tonight as I repair the kitchen sink, and I zoom in 'bout the moment I hear you say the words, "This isn't going to be like your episodes..." And what do you pull out on your table? MY POS TELESCOPE!!! Was it *YOU* that left it out on that street corner!!! Just kidding! P.S.: Thank you for the good advice- you probably just saved me from walking away from what could turn out to be an awesome hobby for me eventually. Hopefully, I can save up enough this year and get myself a little rig like you had in that black backpack. Totally boss, judging by the looks of it. Sincerely, from your newest sub.- JGM

Title: Scott Manley shuts down vivitar

@GreenMorningDragonProductions

4 жыл бұрын

Before I knew anything about digital cameras or Vivitar I bought a cheap ま20 pounds Vivitar camera. Really poor, even for the money. Later, on the DSLR video guide KZread channel, I saw Simon Cade review a Vivitar camcorder and literally throw it in the trash. It's not a fait accompli that if something is ridiculously cheap, it's gonna be awful, because companies like Casio make awesome ten dollar watches. And Greggs pies. But Vivitar seem to wear their consistent and utter crapness like a badge of honour. A brand to be avoided, even if you're short of cash.

@martyzielinski2469

3 жыл бұрын

@@GreenMorningDragonProductions -bear in mind that “Vivitar” today is just some bullshit distributor of Chinese crap who bought rights to the defunct name. In the 1970’s, Vivitar sold reasonably decent 35mm camera lenses, not as good as Nikon or Canon, but usable enough for amateurs.

"I'm a bit of a space nerd in case you hadn't noticed..." - well actually Scott, I HAD noticed!

I love space, physics and astronomy. I didn't bother going to Argos, I did a lot of research over many months and went to my local astronomy shop and bought a Skywatcher 200p on an EQ5 mount without the digital auto finder and later bought some really nice Vixen eyepieces for the DSO's I've always wanted to see. I also got a entry level DSLR (Canon) to take some amazing shots of Mars, Jupiter, Orion Neb and Andromeda amongst others. Dustbin Reflector's are amazing.

My first scope as a kid was a Meade Model 277 Comet Seeker. I was like 6 and it survived my childhood, which in itself is amazing. I took some nice pictures of the eclipse with it this week.

Woah, yes I did think it was a water tank. I feel so ashamed of myself.

@TheOneWhoMightBe

5 жыл бұрын

I confess I never even saw the not-a-watertank. I was too busy looking at the state of his outdoors.

@johnfrancisdoe1563

5 жыл бұрын

Sean C To me it just blended into the wall, but at second look it seemed more like a section of a rocket like the Nexø II experiment from last year.

"But can you have fun with it?" Well you can use it to look at the Sun so I'd say yeah. XD

@eretik4994

4 жыл бұрын

Just to be clear for the ones that would not understand the joke : NEVER LOOK AT THE SUN (with an instrument not explicitely made for this purpose, unless you explicitely do not want to enjoy looking at anything anymore).

Now if I could just know whats in your music collection . . . Love your videos! Thanks and keep it up!

thank you so much for that review on the Vivitar! Saved me a ton of money.... I'm buying two.

As a first scope I would suggest 70x15 binoculars. Good for the Moon, Pleiades, birds, deer etc :-)

@rebelli65

3 жыл бұрын

Do you mean 15x70?

"Fly safe" while I'm testing the highest to land a catalina into a river.

Thank you for this advise regarding a first 'scope!

$5 telescope made a valuable teaching tool for those of us without the optic know-how. You did well at using its faults to explain the better parts of quality scope optics. Thanks!

I have a Celestron NexStar 8SE and just love it to death.

I still have my first telescope. My father built it. The objective lens was a reject from the star-tracker guidance system of the Snark missile.

@curbowman

5 жыл бұрын

Are you kidding? How did he got that lens?

@detectiveamevirus8

4 жыл бұрын

@@curbowman buy or make it diy

So Scott, this video reminds me when I was a kid. I left a Sears or toys r us Christmas magazine open to the telescopes they offered. My parents knew I was fascinated by space so come christmas I opened up this super super cheap telescope, very similar to the one you have there. My heart sank because I knew they were so excited to see me be happy and use this. But I knew it was junk. It bounced around just like your video showed. Now I was able to get much clearer images, but it was so unstable. I rarely used it and I always had this guilt when I looked at it so I never got rid of it

I have that same Orion scope and finder. I love it with a passion... Great little scope.

for $5... the aluminium in the tripod could probably be repurposed ( depending on the profile ) if you are a handy type of person. In a lot of cases getting extruded aluminium section is more expensive than one hopes. the optics could be taped to a dslr for various 'lofi artsy' effects ( best in low light ) should one desire. And the main body might make a decent water bong, which you can trade with the neighbourhood kids for some pokemon or whatnot. So while poor telescope experience, it might not be a 'bad deal' all in all. Thanks again for the vid !

@dynamicworlds1

5 жыл бұрын

Lol

@Cookiefight69

5 жыл бұрын

555

11:17 - What field artillery do you use that would fit on a mount that small?

@johnjonjhonjonathanjohnson3559

4 жыл бұрын

a pistol

Funny enough, the Vivitar is what I have... given to me as a present when I was really young. Now I'm looking at your $500 setup and going "Yes please" lol

Thank you for the excellent presentation. Good audio! May I ask what lapel mike and sound system you are using?

Your "water tank" scope looks like my 12" Dob. It's my grab-and-go scope: I can trot it out to the back yard and be observing in 90 seconds.

@scottmanley

5 жыл бұрын

Yep, easier to get going than my heavy tripod.

But if you were able to get 10 $5 telescopes and collect data with them would they be more effective than 1 $50 telescope?

@koogco

5 жыл бұрын

I suspect the hardware and software to point them in the same direction and combine details would cost a lot more than the telescopes.

@danieljensen2626

5 жыл бұрын

No, nothing really useful you could do with 10 shitty telescopes, unless you just want to look at 10 different things at the same time.

@GlowingSpamraam

5 жыл бұрын

Daniel Jensen ahh yes with my 10 eyes

@pluto8404

5 жыл бұрын

In the simpsons putting multiple megaphones in line worked. I dont see why this wouldnt

@danieljensen2626

5 жыл бұрын

@@GlowingSpamraam Lol, well maybe you want to go back and forth between looking at 10 different things. Or you want to invite 9+ friends to a telescope party?

I used to have a spotter scope that was used at a gun range to spot bullet holes in the distant targets so you could score yourself, and also for watching wildlife, and it also doubled as a nice scope that you could keep in your car. It even had a mount that you clipped onto the edge of your car window so you could use your car as a tripod of sorts. Plus the image went through a prism and was non-reversed. They maybe aren't the best for astronomy, but they're better than that Vivitar and actually useful for terrestrial observing as well.

in the backyard astronomy community they refer to these toy scopes as "hobby killers".

Great video! I had a 8'' skywatcher dobson and I recommend it for initiation.

@TheMhalpern

5 жыл бұрын

my first I think was a 5 or 6" reflector, on an equatorial, took ages to set up.

@acHe607

5 жыл бұрын

I have a 10" Skywatcher. Great engine. But I have a question : how far can you zoom ? When I go up to 200x, the picture is blurry, and I don't know if it's because of the limit of the dobson, the 3x barlow lens I use, a bad alignement of the mirrors or something else.

@TheMhalpern

5 жыл бұрын

@@acHe607 can you adjust the focus?

@Voltikz95

5 жыл бұрын

@@acHe607 your maximum useful magnification would be 50x your telescopes aputere in inches, but bare in mind, just because your your telescope can theoretically go that far, as you have encountered, it isn't always good, magnification isn't all that important, you want to use an eyepiece that frames your target nicely because the more your magnification goes up, the more light loss and detail loss

@acHe607

5 жыл бұрын

@@TheMhalpern I try. When I don't use the barlow, I can see a clear dot. But with the barlow, impossible.

I have this very telescope (under a different brand) somewhere. Bought for about £5 in a book shop. I've seen metallic hydrogen act more stable than that tri-pod!

@theomnivert

5 жыл бұрын

thanks for the laugh

that exciting feel of static... found similar cheap one in the basement after previous tennants - and 5-6-8 year old kids can have some fun with it without any fear of breaking something

Scott, thanks for making great videos! I see you have a lot of vinyls in the background. I know this doesn't match the 'theme' of your channel, but could you consider sharing with us your music tastes and/or setup? Thanks again!

Wow! I'm so happy I've seen this in time! I was almost ready to buy a 5$ telescope... It seems it would have been the worst financial venture! Now I can buy a 5$ microscope with this saving!

@scottmanley

4 жыл бұрын

Lol.....

My son got one and turned it into an MG34 in his fortress

@softb

4 жыл бұрын

Spörde Spyrdenstein your son is happy

@sweeflyboy

4 жыл бұрын

why is your profile picture undercoverdude's logo?

@JukkaX

4 жыл бұрын

@@sweeflyboy Undercoverdude's logo is Walt Disney's stuff :-P

I received this exact same Vivitar as a gift when i was 12; I remember breaking the tripod after a few days. I used it to view the moon handheld after that, like an ultra-telephoto binocular for one eye.

Great video, Scott! I would like to get into astronomy, particularly, i would like to be able to discern parallax. I've read that this is difficult, and would require an aperture of at least 10" (254mm). Do you agree with that assessment? If so, should I start with something smaller?

Thanks for the info! It will help while shopping for my son’s first scope! Also: 1)That’s a really nice couch. 2)That’s got to be a literal ton of vinyl. 3)LEGO gift bag? What’s in the bag‽. Edit: Ninjago set 👍 my boy approves. 4)You play? I’m new to the channel and will have to look that up 🎸.

@ariloggia5130

5 жыл бұрын

If you are looking into a beginner scope I would recommend looking at the celestron 127eq Newtonian. It's cheap but you can also get some nice views of many objects. The mount and tripod are a bit on the cheaper side, but it's nice enough that you will be well rewarded with a bit of patience

@zell9058

5 жыл бұрын

Ari Loggia I will check that out!

I suggest that people buy a 6” dodsonian reflector for their first telescope if they want to see anything outside of our solar system. Orion sells them for about $300. I started with an 8” and eventually graduated to a 12”. Worth every penny.

@DFX2KX

5 жыл бұрын

if you know you're going to be into astronomy that's not a bad first purchase. But for most folks who are mostly just curious, something in the $20-$100 range is probably a better idea, you're not out so much.

@NuclearHotdogsWOT

5 жыл бұрын

I just bought my first telescope. I ordered an 8" dobsonian and the company messed up and sent me a 12". I called them and they let me keep it. Cant wait to try it out.

@oldfrend

5 жыл бұрын

@@NuclearHotdogsWOT wow that is fantastically generous of them. that should be great for taking pictures of bright objects like planets, maybe even the orion nebula.

@DFX2KX

5 жыл бұрын

@@NuclearHotdogsWOT very very nice upgrade

@milkywegian

5 жыл бұрын

@@NuclearHotdogsWOT whats the brand?

My first telescope was a $360 Lanson. I still remember seeing my first hazy view of Saturn, just a blurry blow with rings. But i knew at that point I was hooked. It's amazing what one can see with even a very basic piece bought for $50.

Mr. Manley, I'm an adult but thanks to this video I now want to become you when I grow up. You're so professional and thorough about your hobbies! This video is fascinating. If I'm ever fortunate enough to buy a telescope I'll take your advice in mind.

Can you put a link the the Orion you have and the lenses as well?

@k.h.1587

3 жыл бұрын

It looks like an Orion skyview pro 100. Not sure if they still sell those. 100mm f6 achromat, will have considerable chromatic abberation on bright objects, and there are filters that help with that at the expense of varying degrees of yellow tint to the image, the most expensive option, the baader semi apo having a slight yellow green tint but not as strong as basic minis violet fringe killers. A basic light yellow filter also helps a bit as well. The best being a Stack of fringe killer and neodymium filter, which the semi apo combines in one filter. The SVP mount is big enough for visual use with an 8" Newtonian, and I actually used mine to image with an 8" f4 and 80mm f11 refractor as guide scope back in the day. I had purchased the SVP127 which is also no longer sold as a package, which was a 5" maksutov Cassegrain f12. I got the 80mm f11 as a celestron nexstar 80gtl 2004 $149 Costco special , and purchased a baader bracket dovetail adapter, surplus tasco starguide 4 tripod (same as nexstar 4/5 tripod), and made me a decent etx125 substitute with the 127 on the nexstar mount. Then I bought the 8"f4 optical tube from Hardin (no longer selling consumer scopes, these were made by GSO in Taiwan), a guide scope rings set from Orion to use the 80mm as a guide scope, and a 12mm plossl XY adjustable reticle eye piece (so you can move the reticle around to line up with the best guide star) and I used that set up for film astrophotography for a while. This was 2004/2005. It was the maximum for the mount, but I had no problems, and also later on bought a 2" cg5 tripod used which improved stability, and adapted my smaller (astroview/omni cg4) class Hardin star hoc mount to work with the SVP tripod (1.75"), which made it the equivalent to the omni cg4 (which was not out yet). Having friends in an observing group where the smallest big scope was 12" and we had an 18" and sometimes a 28" out there, I quickly realized that hearing all the oohs and ahhs and calling out if they would still be on it in 3-4 minutes when my exposure was done, made me realize that autoguiding and your own dob as a visual scope was really the way to go. Also because when I finally got my DSLR (Nikon d50 2006) I discovered that digital is less forgiving of guide errors than film. This was back in the days of the Orion catalog, and before Orion sold any goto scopes other than the intelliscope push to system, which was also available as an add on to the skyview pro. The 100f6 was also available on the smaller astroview mount which is adequate for it, and the 127 mak is still sold that way From my greater experience learned since then, and 5 years (part of it as top dog) sales at opt 2006-2011 I would personally suggest the celestron omni 102 f9.8 scope if one was to get a 4" refractor as their main scope. F9.8 has much less false color, while f6 excells for wide field (extreme wide field in the realm of 15-25x binoculars or wider with the widest 2" eps), there is the color I talked about earlier, which is far reduced at f9.8 (f10 basically) Orion (these at least) and celestron scopes are both made by synta, the omni mount is the same as the astroview BUT it comes with a 1.75" steel tube tripod that the bigger SVP mount comes with, so it is very stable. The series also includes a 120 mm f8.3 refractor which is at the limit for that mount but still useable, a 150mm f5 reflector which a buddy of mine did some decent astrophotography with when he hacked the dual axis drive controller for autoguider capability. Also a fine visual scope (I had bicoastal pair of Hardin 6-5 equivalents for a while) . There was, maybe still is, a 6" 150mm f5 short tube refractor in the series as well, but I would only suggest that be used as a low power wide field deep space scope due to excessive false color and mount loading making it not a good high power instrument. Refractors are heavier than reflectors when they get that big. The omni 102 long tube refractor is excellent for all uses in its class, excelling in planetary and lunar, and with 2" eyepieces can still show some wide field views, and in fact, refractors offer the best contrast on open star clusters even in the city they can be seen better than other designs that have central obstructions. And I. Dark skies the clusters are amazing. And one of the best views of m101 (a large faint spiral galaxy) was in a 4" refractor in dark skies. The extra contrast helped bring the spirals out The scope is also in the under $500 range. I did use my star hoc on 1.75 tripod a couple times with the 8"f4 visually and it worked well, and recently put a c8 on my current astroview on a 2" tripod and it was rock solid, so I know that omni mount is no slouch. c8 is lighter than 8" newtonians and much shorter, so I wouldn't suggest putting a longer than f4 8" on one, for that size (f5 f6) you want to go with a CG5/SVP.

I recently had a Takahashi FS128, mint condition, bought in march 99 for £5000 brand new.

@nitehawk86

5 жыл бұрын

I have a WO FLT-132 that I got for a good price, but I am not very happy with it. I should have just shelled out for a Takahashi or Astro-Physics.

@weschilton

5 жыл бұрын

I have three Taks myself, a TSA-120, TOA-150 and an FSQ-106EDXIV. They are magnificent scopes!

@nitehawk86

5 жыл бұрын

Nice, I decided to get a premium mount before optics. Now that I have a Mach1 its time to get some high end scopes. :)

@starsoffyre

5 жыл бұрын

Taks are fantastic scopes indeed. Owned a couple of little ones (60 and 85mm) which were physics-defyingly sharp for their size.

very amusing Scott! :) thank you

Hi Scott, this was a pretty good explanation and a fair one, I should say. It was funny too. Next video you can end it playing a bit on that beautiful guitar.

Scott, could you please make a video explaining all the numbers you just used? What do the length and diameter of a telescope actually do? What is apature? Why is there a difference in how big certain lenses are? Why does magnification not mean anything? You are the perfect person to answer these questions! I'd really love a video with some diagrams and equations!

@kilovian353

5 жыл бұрын

Aperture is the diameter of the primary lens of the telescope. Logically, the larger that diameter is, the more light enters the telescope at once, giving better details and brighter images. Therefore, aperture matters much more than simply the magnification you are viewing an object at. The focal length of a telescope is the distance between the primary lens and its focal point (the light is refracted in a conical shape, eventually intersecting at the focal point), and the magnification is calculated by dividing the focal length of the eyepiece you are using into the focal length of the telescope.

@Phroggster

5 жыл бұрын

Aperture was an underground lab that focused on the squishy sciences. IIRC, they were the first to land a portal on the moon's surface.

@oldfrend

5 жыл бұрын

magnification only matters if your telescope is high quality enough to actually see details, otherwise you'll just get a blurry mess no matter how good you are at focusing. there's a rule for effective magnification vs aperture but i forgot what it is, but generally the wider the aperture the greater its angular resolution and the finer details it can make out. i have a 130mm reflector and at best i can make out a few bands on jupiter. can kinda see the red spot even with the image magnified to fill up the lens.

@fred_derf

5 жыл бұрын

Apature is the diameter of the objective lens (the big one at the front) or the primary mirror (depending on the design of the telescope) and directly determines how much light the telescope can gather -- the bigger the better, the more light that is gathered the more detail you can see. The focal length is the distance between the objective lens (or primary mirror) and the focal plane (the point where the image is focused at). The focal length determines the "zoom" level of the telescope (or more precisely the angular size of the resulting image). Camera lenses are sold based on their focal length, I have for example a 100 mm - 300 mm zoom lens and that determines the angular size of the resulting image. Imagine taking a camera and setting it up to take a picture of a wall, with one lens it will image a 10' by 10' area of the wall, then you change to a lens with a longer focal length and now you can only image a 4' by 4' area of wall. Magnification is a product of the focal length. The moon, for example, has an angular resolution of about 31 arc-minutes. If you look at it with a telescope that has a 2 degree field of view the moon will only take up a quarter of the width of the image (or 1/16th of the whole image). If you use a telescope with a longer focal length that has a 1/2 degree field of view the moon would take up the whole image. With a telescope, you can use different eye pieces to change the magnification, but all they do is limit the amount of the image gathered by the telescope that you can see -- it's analogous to using digital zoom in a camera. It doesn't show you any more detail, it just makes the detail bigger. So to go back to the earlier example of a telescope with a 2 degree field of view, rather than changing to a telescope with a longer focal length you can just change the eyepiece so that the moon fills the whole frame, but it would so by only showing 1/16th of the image gathered by the telescope. BTW: When I changed from using 35 mm film to a digital camera body the image sensor in my digital camera is smaller than 35 mm film which has effectively increased the magnification of my lenses, but it's done so in the same manner as changing the eye piece in a telescope. For my camera the effect is minimal and the benefits of it being a digital camera far outweighs the minor loss of image quality. So, if you want to be able to see more detail (i.e. have a better image, not just a bigger one) you need to get a telescope with a bigger objective lens (primary mirror) so that it gathers more light and if you want to focus on a smaller piece of space you need a telescope with a longer focal length. See, magnification isn't a factor.

@buggsy5

5 жыл бұрын

You should be able to do far better than that. That is a 5" aperature and you should be able to see Cassini's Division under good seeing conditions and a good ring tilt. The basic rule is that more than 20x/inch aperture is seldom useful and 20x only when the atmosphere is quite steady. Average seeing is more like 5x to 12x. So, with your scope, look for magnifications in the range of 25x to 60x. Go higher if the conditions are steady. You didn't mention the focal length, but many reflectors of such small diameter are f/8 or f/10. That would put your focal length somewhere in the 1000 to 1300 mm range. That means a 25 mm eyepiece will give you somewhere around 40x to 52x. You might be able to use a 15 mm eyepiece occasionally. There is an exception to the rule when you are just trying to split double stars. There you are not looking for detail, so a lot of blur is acceptable. I have used as much as 50x on such occasions, but the stars are pretty dim.