Astro Tutorial #1.5: Focal Length and Aperture

Ғылым және технология

- - New version with enhanced audio quality: • Astro Tutorial #1.5: F... - -
Hey folks,
in this video we cover the defining properties of a scope.
We will discuss:
- Focal length
and
- Aperture
and what other properties derive from those two.
So what should a scope claim to catch your attention?
Why shouldn’t you buy a “300x magnification scope” for 20$? ;)
We will find answers to that and talk about
- optical resolution
- the field of view or
- the light gathering capabilities of scopes.
And then, if you are used to all of this terms, you can start to decide what scope might fit you best.
Clear skies and till next time!
Greetings
Chris
Hashtags:
#focal_length
#aperture
#FOV

Пікірлер: 166

  • @catchingphotons
    @catchingphotons3 жыл бұрын

    I just uploaded a remastered version of my first videos with enhanced audio quality and no coffee :-) Check them out: kzread.info/dash/bejne/l4WMy8mPhJiYgNo.html ! Clear skies!

  • @MattRussellUK

    @MattRussellUK

    2 жыл бұрын

    Thanks - the slurps were...distracting.

  • @parthpatel0335
    @parthpatel03354 жыл бұрын

    You deserve more views. Just dont stop making videos.

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Don't worry, I won't :-) Thank you very much for your encouraging comment! Greetings and clear skies Chris

  • @Sarimae23

    @Sarimae23

    3 жыл бұрын

    @@catchingphotons I can only copy that. you need more views. :) Well done, thank you

  • @ericfrench2021

    @ericfrench2021

    3 жыл бұрын

    @@catchingphotons Just found this channel. Very informative video. Thank you!

  • @kevinwilliamenriquez2641
    @kevinwilliamenriquez26413 жыл бұрын

    Why is this channel not more popular? I've been stargazing and doing astrophotography for months, and a lot of these basic concepts haven't sunk in as well as they have, until I've watched this. keep it up and please make more! :D

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Kevin for your encouraging comment! I will keep on doing stuff. We are just at the beginning :-) Even though the theory part is quite important, I think! Next will be Hardware and then Image Acquisition.... still a long way to go. Spread the word, if you think the content is worthwhile :-) Clear skies! -Chris

  • @kevinwilliamenriquez2641

    @kevinwilliamenriquez2641

    3 жыл бұрын

    @@catchingphotons sharing with friends. Surprisingly useful for intermediate astrophotographers too (fine tune and review).

  • @TheCommandModule
    @TheCommandModule4 жыл бұрын

    Clear and Crisp explanation of various variables in telescopes. Helped me to understand field of view (fov). Thank you.

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Thanks a lot for the comment, glad the video helped! Clear Skies!

  • @hoaithanhnguyen7178
    @hoaithanhnguyen71782 жыл бұрын

    actually this is very good for someone to start the hobby. thank you Chris.

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Thank you very much for the encouraging words!!

  • @zeynaamazonlu7978
    @zeynaamazonlu79783 жыл бұрын

    Pleaseeeee keep the videos comming ..i so desperately need you in my life right now to help unravel this mystery of which telescope to purchase.... Thank you ..

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    I will. Despite "normal life" I two videos are currently in the pipe. Barlow lenses and projection methods. That will be it for the "theory" part and we will move on to the hardware part. That might help you with your decision! I'm honored, that you count on this channel! Clear skies! -Chris

  • @bennybooboobear3940
    @bennybooboobear39403 жыл бұрын

    Hey man, (as everyone says) you really deserve more views. I can see the amount of effort and time you put into your vids! I love your accent as well, keep doing vids and don’t give up!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Benny for the kind words! Creating this channel is a cool experience 😉 the community is superb and I get a lot of encouraging feedback. So: thanks for that!

  • @cosmoscafe3745
    @cosmoscafe3745 Жыл бұрын

    This is the best video on focal length ever! 💯

  • @catchingphotons

    @catchingphotons

    Жыл бұрын

    Oh thank you very much!! Much appreciated!

  • @clestonlopes6618
    @clestonlopes66184 жыл бұрын

    Nice job, very informative ans well explained, my wife said that you made it easier to understand.

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Thank you very much! Greetings to both of you!

  • @thehonestcourier
    @thehonestcourier Жыл бұрын

    Thank You so Very Much. As you know telescopes are a Great Mystery to most. Just this one video taught me far more than I could have ever figured out for myself. Your presentation was great, your breaking down and explaining the focusing details was PERFECT. I am shopping for a "better telescope" for my grandchildren and now while I am certainly not an expert. at least I have a basic understanding. Thank You Again.... and Merry Christmas. Gary Rullo , Delaware

  • @catchingphotons

    @catchingphotons

    Жыл бұрын

    Ah thank you so much for your kind comments! This is truly what keeps me going! Cheers and clear skies!

  • @3uphrates
    @3uphrates6 ай бұрын

    Thank you for the clear explanations, great work!

  • @catchingphotons

    @catchingphotons

    5 ай бұрын

    You are very welcome! 🤗 Cheers 🍻

  • @mrlittlefinger1516
    @mrlittlefinger15163 жыл бұрын

    Vivid and exquisite description!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks ahmad!

  • @esparagus
    @esparagus4 жыл бұрын

    Thanks for the videos. Very informative and well done! I am just about to buy my first telescope and your videos have been the most to the point pieces of info I could find.

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Thanks esparagus! I'm glad the videos are of any help! What first telescope are you tending towards? Greetings Chris

  • @esparagus

    @esparagus

    4 жыл бұрын

    @@catchingphotons did not decide yet but looking for a refractor for ease of use. And a good mount too with solid tracking.

  • @esparagus

    @esparagus

    4 жыл бұрын

    focusing on the mounts at the moment. probably an eq5. and a refractor in the 1k EUR range. recommendations are welcome.

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    The EQ5 or the EQ6 will serve you well. My EQ6 -R Pro is on its way!! I can't wait for it to arrive! I'm in team "Newton" but I'd recomend not to use focal lengths above 750-800mm for the beginning. Shorter FL are easyer to polar align, to star align, to frame, to guide/track. @astrobackyard uses a few short FL scopes. Check out his channel! kzread.info/dron/n3npsPixgoi_xLdCg9J-LQ.html Greetings Chris

  • @marktom5243
    @marktom52433 жыл бұрын

    Very informative and concise. Thanks.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Mark! Appreciate your comment!

  • @timsexton
    @timsexton2 жыл бұрын

    Very well explained. Thank You !!

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    You are very welcome Tim. Thanks a lot for your comment!! Clear skies!

  • @yenyelinito
    @yenyelinito4 жыл бұрын

    What a good video, keep it going!

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Thanks for the words of encouragement! I will, the next video is in the pipe - just took a bit longer than expected. Greetings Chris

  • @patrickmole9645
    @patrickmole96454 жыл бұрын

    Best explanation for Aperture

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Thanks Patrick!

  • @ephjaymusic
    @ephjaymusic3 жыл бұрын

    Love these videos!! Thank you!

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Thanks for the encouraging comment!!

  • @RonySemaan
    @RonySemaan2 жыл бұрын

    Very educative and informative details. Nice work & thank you

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Thanks for the encouraging comment, you are very welcome. I hope my video-series is of any help. Clear skies!!

  • @deep_space_dave
    @deep_space_dave2 жыл бұрын

    Even though I understood the fundamentals, your video really solidified them! Well done!

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Thanks David! Well appreciated!

  • @ryry4298
    @ryry42984 жыл бұрын

    This is the video i was looking for before i buy my first scope

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Cool! Glad I could help! Have you already purchased your scope? What is it? Greetings Chris

  • @keepondev
    @keepondev2 жыл бұрын

    wow! man thank you for the great explanation.

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    No worries mate. Glad you find it helpful. Clear skies!

  • @kelrico1
    @kelrico13 жыл бұрын

    Great video. Thank you!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Kelrico1, you are very welcome!

  • @Fredrikaolsen
    @Fredrikaolsen3 жыл бұрын

    Awsome vid! Learned alot

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks!! Clear skies :-)

  • @ManishFrenchStudio
    @ManishFrenchStudio3 жыл бұрын

    Knowledgeable video 💖💖🎉🎉🎉 thank you for sharing 🙏😀🎁🎁🎁🎉🎉🎉

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Manish, you are very welcome!

  • @babaali7050
    @babaali70504 жыл бұрын

    thanks. you gave easy explanation. Keep it up.

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Thanks, I will :-) Clear skies!

  • @anirbanchowdhury5777
    @anirbanchowdhury577710 ай бұрын

    This is really helpful, thanks

  • @catchingphotons

    @catchingphotons

    4 ай бұрын

    You are very very welcome!

  • @solkatlol
    @solkatlol3 жыл бұрын

    Dude, excellent video. Very useful for someone like me who just bought their first telescope.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    It's soo cool that this videos can be of any help! What scope did you buy? Clear skies to you and lots of fun with the scope! Chris

  • @solkatlol

    @solkatlol

    3 жыл бұрын

    @@catchingphotons Oh for sure. I'm gonna eat them all up a time or two in the next days. Very informative. I bought a Celestron Advance VX 8" Newtonian - it might be a gamble but I figured I'd start at a decent level. :P

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    @@solkatlol Is it 1000mm FL? That's actually pretty long. Make sure to nail polar alignment. The longer the focal length the higher the precision needs to be with everything. But 8" Newtonians are cool :-) What mount did you buy? Greetings Chris

  • @solkatlol

    @solkatlol

    3 жыл бұрын

    @@catchingphotons It's identical to this one. Has a built in automatic mount. :) kzread.info/dash/bejne/nnl71JedotTZqbQ.html&ab_channel=AstroBlender I have my first trip coming up this weekend, so I'm very excited.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    @@solkatlol Then: clear skies buddy!

  • @brownsamurai3070
    @brownsamurai30703 жыл бұрын

    Coffee cup was neat. Immediately made me want to get up and get a 2nd cup.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    The opinions about the coffee diverged ;-) Clear skies man!

  • @astrowales5581
    @astrowales55813 жыл бұрын

    great video!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks!!

  • @jons2447
    @jons24472 жыл бұрын

    Thank you, Chris! BTW, multiply by 25.4 to convert inches to millimeters, 2.54 for centimeters. (For those that don't know.) Have a GREAT day, Neighbor!

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Haha, thanks Jon! Where are you from? Clear skies!!

  • @balack106arrow
    @balack106arrow3 жыл бұрын

    You are doing a great job. Just stop drinking whatever it is because I couldn't finish the video.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks for your comment! I just uploaded a remastered version of my first videos with enhanced audio quality and no coffee! Check it out: kzread.info/dash/bejne/l4WMy8mPhJiYgNo.html

  • @humlakullen
    @humlakullen3 жыл бұрын

    Thanks a bunch:-)!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    You are welcome ;-)

  • @charimuvilla8693
    @charimuvilla86933 жыл бұрын

    That was very useful! What's your opinion on barlow lenses? Can they really make up for a shorter focal length?

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Chari, barlows can help alter your focal length for sure BUT only within the given borders of optical physics. The longer the focal length of your scope the lower the areal luminosity in the images you take. And: you must not exceed the physical boundaries of "magnification". Every telescope has a maximal resolution. That is given by the aperture of the scope. So maybe not the best idea to pimp a 400FL/50AP scope with a 5x barlow to 2m FL :-) Other way around: The shorter the focal length - yes - the wider the FOV BUT every imperfection will be visible in shorter focal length ranges. See with my 750mm F5 Newtonian scope. I need an extra "coma corrector" to undo the intrinsic errors of parabolic mirrors at the edges. Otherwise the image is out of focus at the edges. So there are "folded light path scopes" with extra adapters to turn a F11 into F2 (astrobackyard has a great video about his one). BUT they are primarily build as F2 with a WIDE aperture. All the mirror elements are of best quality to go for this range. Never touch a F12/50mmAP long lens scope (let alone 2 lens designs) and "shrink" them to F2. That just does'n work. But in the end: My F5 750mmFL scope is too short for planetary. So I use a 3x barlow and I am happy with this. The resulting 2.2m FL is as high as I want to go with my seeing conditions and there I am :-) Other way around: M32 the Andromeda Galaxy just doesn't fit into one frame. So I need a x0.75 focal reducer. That is fine and works for almost every scope. Hope I could help and sort some things out! Clear skies! Chris

  • @charimuvilla8693

    @charimuvilla8693

    3 жыл бұрын

    @@catchingphotons Wow that has to be the most detailed answer I ever got on youtube thanks a ton! I ordered a cheap 7cm aperture 30cm focal length telescope to see if telescopes are my thing and I was wondering if I messed up with that focal length. But I'm guessing barlows will help me see some planets.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    ​@@charimuvilla8693 You are very welcome! Ok, 300mmFL is a rather short scope but 70x2 = 140 times magnification is possible. So... try 2x barlow and a 10mm eyepiece? Jupiters moons are spectacular to see, even with small binoculars. Greetings Chris

  • @garyliu6589
    @garyliu65892 ай бұрын

    💕

  • @maheshprajapat3555
    @maheshprajapat35553 жыл бұрын

    thanks sir

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    You are very welcome!

  • @ytaky
    @ytaky4 жыл бұрын

    Good explanation, thanks! im trying to decide what telescope to buy.. for the last 2weeks :/ so far ive narrowed it down to: - Bresser Sirius 70/900 refractor - Bresser Venus 76/700 reflector price wise Venus is 33€ cheaper, so that doesnt help (much) both have similar size and weight.. both come with 4 and 20mm, 3x barlow, red dot and smartphone adaptor im after quality moon gazzing, some saturn, jupiter eyeballing and some nebula if possible, what would the best choice be? Thanks.

  • @ChrisSmith-lk2vq

    @ChrisSmith-lk2vq

    4 жыл бұрын

    Mobile me: Hey and thanks for the comment!! Both scopes are cheap ones. Some would call them beginner scopes but I'd hesitate doing so because a beginner scope should serve the beginner well! I'm in doubt whether your suggestions would be best fitting. The refractor is achromatic - meaning no good correction for chromatic aberration. The reflector is color true but with both scopes the focal ratio is pretty large (9.xyz) and the mounts (!!!) are somewhat weak. My suggestion: spend a few dollars extra and get this: skywatcher skyliner 150p dobsonian The Dobsonian mounting is sturdy, the scope of good quality and with 150mm aperture you will be able to see some planetary details as well as some faintnebulosity of DSOs with your eyes. Very cheap scopes are often not the best joy... The best scope is the scope you enjoy to use. See my episode about mounts for the importance of those ;-) Greetings and clear skies!! Chris

  • @ytaky

    @ytaky

    4 жыл бұрын

    @@ChrisSmith-lk2vq Thank you for answering. in all honesty I am a "noob" all my sky exploring till now was made with my eyes and a pair of cheap binoculars. So a cheap(ish) telescope would be the logical upgrade in my opinion.. I would like to stay under the 200€ mark. Would the Bresser 114/500 Solarix be a reasonable "upgrade" to the other two telescopes I mentioned? Considering my objective Thank you

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Hey Tiago, what do you want to do with your scope? 500mm is more like bigger sections of the sky - star fields or very (!) bright DSOs. With the attached 2x Barlow you can observe sections of the moon - planets... maybe. Install "Stellarium", enter the specs and play around with the given field of view. So you will get a feeling of what you can expect. Keep an eye on the mount! Under some aspects it is much more important than the optics. Greetings Chris

  • @wankerbush3769
    @wankerbush37693 жыл бұрын

    finally someone fking explained it, others just putting brands in their videos, that is good this is baaad, but no explaining why

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Laca!

  • @bobbailey7235
    @bobbailey72353 жыл бұрын

    What is the worse sound to hear: a. a grizzly bear running towards you as you look thru your telescope? B. A tornado approaching your home with no basement or storm shelter. C. The sound of your internet teacher slurping coffee during the class. If you chose C then you watched this video and heard the sounds which ripped the neuron synapse apart as you were trying to understand this video’s information.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Bob for this feedback. Every feedback is well appreciated and I do conciser redoing some of the first videos anyway. But that will take some time. The upcoming videos are mostly "coffee-free" and I hope you like them anyway! Clear skies to you!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    I just uploaded a remastered version of my first videos with enhanced audio quality and no coffee :-) Check them out: kzread.info/dash/bejne/l4WMy8mPhJiYgNo.html ! Clear skies!

  • @jesseavalos08
    @jesseavalos082 жыл бұрын

    I need help i keep viewing Jupiter with a bright white object how can i over come the bright light and see more detail of Jupiter thank you for sharing

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Hey Jesse! Are you talking visual or imaging? What is your equipment? For visual: check your focus and/or use a filter to dim the light. But normally I'd say that Jupiter should be visible without filters. Imaging: check gain and exposure on your camera. When set rightly you should see Jupiter's surface but hardly the moons. Clear skies!!

  • @robertmadey6085
    @robertmadey60853 жыл бұрын

    great video if you like astronomy and listening to someone slurp coffee constantly.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks Robert for your comment! Coffee is (mostly) banned in future videos... Clear skies to you!

  • @ninjaace0944
    @ninjaace09442 жыл бұрын

    hello i hope you can answer my question. i have a celestron powerseeker127eq. it has aperture of 127mm(5 inches) and a focal lengh of 1000mm is it good? it also comes with a 4mm eyepiece, a 20 mm and a 3x barlow lense. the 4mm is to powerfull i will see big but blurry. the telescope cost around 230$ thanks

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Hey ninja! The power seeker is an entry-level Newtonian telescope. The mount looks kinda shaky to me but for plain visual it might do the job. It's an equatorial mount meaning you need to polar align before observation but on the other hand tracking objects will be much easier. Best case: just turn the RA knob. Can't say anything about the optics. With f7.5 it's not fast, not slow and the focal length of 1000 will allow you to observe the moon and the planets easily. Max magnification is ~2x aperture [mm] so around 250x. If you use the 4mm eyepiece (looks quite cheap to me) you are on this edge (1000mm:4mm=250x). So I doubt you will get much use out of the 3x Barlow. For brighter Deep Sky Targets the 124mm aperture might just be enough. You can expect to see the inner core of Andromeda or the bright core of the Orion nebula or very faint hints of brighter planetary nebula. Don't expect to see any structure within deep sky objects. Your scope has too little aperture to resolve those. My Newtonian telescope has nearly the same specs: 750/150. And I'm quite happy with the scope. Using it for the planets can reveal the rings of Saturn or the structure on the surface of Jupiter or its moons big craters on our moon and even some details on Mars. My recommendation: maybe invest into a good 10mm eyepiece and a high quality 2 x Barlow lens and if it's within your budget try the smartphone adaptor from celestron. With this adapter you can capture videos of the planets or parts of the moon and stack those later on on within autostakkert!3 to achieve sharp results. See my latest video about smartphones within astrophotography for more info. Clear skies and lot of fun with your scope!! -Chris

  • @ninjaace0944

    @ninjaace0944

    2 жыл бұрын

    thanks clear skies to you to

  • @davidbrandenburg8029
    @davidbrandenburg80293 жыл бұрын

    I would recommend 114mm or larger mirror on a newtonian, considering how cheap they are inch for inch compared to refractor telescopes!.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Both groups have their advantages and disadvantages but true: I'm a big fan of reflectors, too.

  • @gouravranjan9558
    @gouravranjan95584 жыл бұрын

    According to you which is better Astromaster 130EQ or Astromster 114EQ. Bcoz I m little bit confused among these 2 models. Please suggest me.

  • @ChrisSmith-lk2vq

    @ChrisSmith-lk2vq

    4 жыл бұрын

    Mobile me: "What do you want to do with the scope?" is always the first question. Both scopes will only be useful for first visual steps. Do not attempt to step into real astro photography with those scopes. The mounts are not motorized and quite weak. The 114 seems to have an additional lens in front of the eyepiece. This is called Barlow lens. I don't know why they would do so?! A shorter scope would be faster and deliver brighter areal targets... given the same eyepieces. Whatever. I wouldn't buy a scope with attached Barlow lenses. If you ask me: go with a 20cm Dobsonian. They are cheap and the mounting (Dobson mount) is sturdy. No alignment needed - point and shoot. If you then wish to enter astrophotography... Go for dslr lenses first (traveling mounts) or - with a big scope - nothing under eq5. The mount is everything!!! See my episode about mounts. Greetings Chris

  • @catchingphotons

    @catchingphotons

    4 жыл бұрын

    Hope, that helped :-)

  • @joeabad5908
    @joeabad59083 жыл бұрын

    Starting to get interested.. My interest is more with birds than sky. Im eyeing an SVbony SV503 though taking my time per your advise as the total price easily piles up as I add accessories...

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Yea... unfortunately this equipment tends to get quite pricey. Anyway: Clear skies!!

  • @joeabad5908

    @joeabad5908

    3 жыл бұрын

    @@catchingphotons thanks

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    @@joeabad5908 You are very welcome!

  • @bobbertonsmivelton7019
    @bobbertonsmivelton70193 жыл бұрын

    Hi just wondering, I live in Australia, it's windy over in Queensland right now, and even if I put a heavy base under it, it wouldn't stop wobbling. Any ideas?

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    What is the name of your mount and the focal length of your scope Bobberton? Clear skies!

  • @bobbertonsmivelton7019

    @bobbertonsmivelton7019

    3 жыл бұрын

    @@catchingphotons The name of my mount is Saxon EQ3 Mount and the focal length I've found is around 700mm. Cheers!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    @@bobbertonsmivelton7019 EQ3 and 700 is always a trouble. I used a EQ3 until recently. It didn't wobble around in normal usage but was too unstable for longer exposures (>30" was tricky). But wind is always a problem for mounts at their weight capacity limit. Greetings! Chris

  • @bobbertonsmivelton7019

    @bobbertonsmivelton7019

    3 жыл бұрын

    @@catchingphotons Thanks I'm thinking of buying a different one, any ideas?

  • @davidbrandenburg8029
    @davidbrandenburg80293 жыл бұрын

    better consider cashing in one of those kids, if you want a newtonian in 12 inches or larger!.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    The most important point here is the mount! No good telescope without the mount.

  • @_mahii_1003
    @_mahii_10032 жыл бұрын

    Can you suggest best telescope under $400

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Sure, for what purpose? Do you want to travel? Are you stationary? Do you want to image? Are you team visual? What targets interest you most (planets or giant nebula)? ....... My tip: download "Stellarium" and play around with different focal lengths. Clear skies!!

  • @_mahii_1003

    @_mahii_1003

    2 жыл бұрын

    @@catchingphotons I love deep space so I just want to see some planets and nebulas. Love to take photos too ☺️

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    That's a broad range! 😉 Deep space is something totally different than planetary and visual is different to photography. I'd make a suggestion: Planets are a cool thing to view. To do so you need a long focal length. To visit any deep sky object (planetary nebula and stuff) you need some sort of aperture. Why not buy a Dobson? That's the most aperture you can get for the money and cool for planetary, too. You can add an additional smartphone adapter for your eyepiece and capture breathtaking images of the planets and snapshots of some bright deep sky objects. Truth: you won't take APOD images of nebula with such a scope but it's brilliant to get into the hobby and to learn the night sky. I'd choose the Skywatcher Skyliner (150) or some equivalent, the Celestron NexYZ Smartphone Adapter or equivalent and a normal 2x Barlow lens (Omegon or something). For start use a 10mm and a 25mm eyepiece. That in combination with the Barlow should do the trick. Clear skies!!

  • @anata5127
    @anata5127 Жыл бұрын

    Telescope should be presented with camera. Right? Only this combination is important. FOV, resolution, etc is function of imaging scale. Right?

  • @catchingphotons

    @catchingphotons

    Жыл бұрын

    Partly right. But in this video I wanted to focus on scopes themselves. Cheers!

  • @anata5127

    @anata5127

    Жыл бұрын

    @@catchingphotons Not particularly, fully right. Scopes are bought on base of imaging aims and cameras in hands. This topic critical. It could be broken on parts and presented meticulously.

  • @consti-xe8cj
    @consti-xe8cj3 жыл бұрын

    i have a 1000mm newton telescope and its not really long more short idk why

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Hey Consti! What do you mean "it is short". Like physically? 1000mm is considered to be intermediate long. It's not 2500mm but... short would be something like 400mm but: there is no real definition! Clear skies!

  • @consti-xe8cj

    @consti-xe8cj

    3 жыл бұрын

    @@catchingphotons ok its hard to explain here is the link to the telescope: www.astroshop.de/teleskope/celestron-teleskop-n-127-1000-powerseeker-127-eq/p,7934 im just wondering why this telescope still short with a 1000mm focallenght thats what i mean btw thank you i wish you clear skies too!

  • @Trying858

    @Trying858

    2 жыл бұрын

    It is a reflector so the light travels twice to 3 X as far in the optical tube. I have a really short 1300mm FL scope Maksutov-Cassegrain.

  • @Amradar123
    @Amradar1232 жыл бұрын

    Nice videos but why the slurping noises? It distracts.

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    Hey Marc, Please feel free to watch the "coffee-free" and audio-enhanced version of this video: link is in the playlist. Clear skies!

  • @martinvillamayor5354
    @martinvillamayor53543 жыл бұрын

    How much apeture has your coffee?

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Differs with the time of day ;)

  • @Matt-pi9jo
    @Matt-pi9jo3 жыл бұрын

    Lol @ 1:27 coffee ☕️

  • @Matt-pi9jo

    @Matt-pi9jo

    3 жыл бұрын

    And more hah

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    ;-) I swear it's gone in more recent videos. Thanks for watching! Clear skies!

  • @deltacx1059
    @deltacx105911 ай бұрын

    Keep in mind the focal point isn't exactly a point it's a plane and that fact will absolutely screw with you if you miss it whilst building a scope.

  • @catchingphotons

    @catchingphotons

    4 ай бұрын

    And most often it's not a plane but a curved plane if you try to build a mirror telescope. :-) optics are tricky.

  • @deltacx1059

    @deltacx1059

    4 ай бұрын

    @@catchingphotons seems to be curved with refractors too considering I need a field flattener for my homemade refractor.

  • @pubgplayer9064
    @pubgplayer90643 жыл бұрын

    I am making a 1,000 mm telescope 😆

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Fair plan! Clear skies!

  • @pubgplayer9064

    @pubgplayer9064

    3 жыл бұрын

    @@catchingphotons i don't have money brother that why 😢

  • @ericdran9181
    @ericdran9181 Жыл бұрын

    Okay, the Coffee thing was Really annoying...

  • @catchingphotons

    @catchingphotons

    Жыл бұрын

    For non-coffee-folks I uploaded the entire series "coffee -free". Head over to my playlist for more videos 😊 Cheers and clear skies!

  • @viewfromthehighchair9391
    @viewfromthehighchair9391 Жыл бұрын

    People below are questioning why you don't get more views. I agree in the quality of the videos; however, I would suggest losing the coffee cup sip. I know you think it is charming; however, for some (like me), it is annoying as hell. Stop doing it and the views will come.

  • @catchingphotons

    @catchingphotons

    Жыл бұрын

    Got it! This video is a bit older and I switched to coffee free content a while ago 😉👍 There is also an edited non -coffee version. I left this version online though because some folks find it relaxing, so.... As always: one topic, multiple opinions. Thanks though for your kind words, very much appreciated! Cheers and clear skies! Chris

  • @theprimer1024
    @theprimer10243 жыл бұрын

    Stop drink this coffee!! It's not nice to hear!!!!

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Got your message. Clear skies! -Chris

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    I just uploaded a remastered version of my first videos with enhanced audio quality and no coffee :-) Check them out: kzread.info/dash/bejne/l4WMy8mPhJiYgNo.html ! Clear skies!

  • @akm1967
    @akm19673 жыл бұрын

    Sip sip. Really!???

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Sip Sip - yes. Somehow I need to redo my first videos in the upcoming future. Stay tuned :-) Clear skies - Chris

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    I just uploaded a remastered version of my first videos with enhanced audio quality and no coffee :-) Check them out: kzread.info/dash/bejne/l4WMy8mPhJiYgNo.html ! Clear skies!

  • @mechengineering583
    @mechengineering5833 жыл бұрын

    everything was well explained except the coffee sipping. Which was irritating. Sorry.

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks for the feedback! You will be delighted to hear that I re-uploaded the coffee-videos with enhanced audio and without coffee. All videos in the play list are "coffee-free" :) kzread.info/dash/bejne/l4WMy8mPhJiYgNo.html Clear skies! -Chris

  • @jeffczartoszewski4568
    @jeffczartoszewski45683 жыл бұрын

    Great video untill I the disgusting sounds of you slurping and gulping filled my ears. Why on Earth would you think anyone wants to hear such revolting noises. We scold children for slurping and making such noises. Too bad. It was a very informative video 🤢

  • @catchingphotons

    @catchingphotons

    3 жыл бұрын

    Thanks for your reply and the very "explicit" description, Jeff! Some are offended and some are not - there won't be any in future videos but I can't promise that for any upcoming 7h long live-sessions :-) Maybe a great Talisker Storm against the cold...

  • @redpilldude8688

    @redpilldude8688

    2 жыл бұрын

    Thank you for this comment. I agree. No more slurping pls.

  • @lalunaraggio31
    @lalunaraggio312 жыл бұрын

    The tea sound is creepy and annoying ☹️

  • @catchingphotons

    @catchingphotons

    2 жыл бұрын

    😅 the community is 50:50 about that sound. Especially for folks annoyed by that sound I re-uploaded the entire chapter without tea 🍵 feel free to watch the enhanced version. Clear skies!!

  • @davoc5140
    @davoc5140 Жыл бұрын

    Deine explanations sind fantastisch ...mein Deutsche ist nicht so gut...

  • @catchingphotons

    @catchingphotons

    Жыл бұрын

    Danke für das Lob!