How much DYNAMIC RANGE do we actually need?

Фильм және анимация

You're gonna wanna see this if you're at all interested in cameras and how they work. In this MONSTER of an episode, Greg dives deep into the science & art of dynamic range to answer all the questions and put this debate to rest. Enjoy!
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I did a lot of research for this episode and cited reputable sources, but I'm not a scientist nor a sensor engineer. If you are and expert and have a correction to make, I'll make sure to put it in the pinned comment below.
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00:00 Intro
01:12 1. WHAT IS DYNAMIC RANGE?
02:19 1.1 Signal saturation
03:36 1.2 Sensitivity threshold
05:24 1.3 Signal-to-noise ratio is key to DR
07:54 1.4 DR comes from the shadows, not highlights
09:08 2. ANALOGUE TO DIGITAL CONVERSION
11:38 2.1 14-bit photo mode VS 12-bit video mode
13:19 2.2 Linear VS Logarithmic
16:14 2.3 Magic of Log: bending the measuring stick
19:53 3. CUTTING THROUGH THE MARKETING BS
21:11 3.1 In-camera noise reduction
22:32 A note on dual gain output (DGO)
23:09 3.2 Downsampling
24:04 3.3 Compression
24:42 3.4 Highlight recovery
25:33 3.5 Loss of contrast
26:17 3.6 We need to do better
28:06 4. THE PRICE OF HIGH DYNAMIC RANGE
30:38 4.1 Sensor design is one huge tradeoff
32:58 4.2 Dynamic range is not the be-all end-all
34:45 4.3 Can you handle the best IQ?
36:09 5. HOW MUCH DR DO WE REALLY NEED?
37:38 5.1 Mastering for SDR & HDR
39:45 5.2 The dynamic range of film
41:23 5.3 Scene DR vs camera DR
43:50 5.4 Squeeze & drop
45:47 6. NUMBERS VS ART
46:40 6.1 Realistic vs cinematic
47:58 6.2 It's not about the camera
48:50 6.3 Yo Rembrandt, how many stops?
51:08 6.4 Art is not about more, but less
53:29 CONCLUSIONS. The dynamic range tier list
56:39 Outro
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Пікірлер: 61

  • @romainwillerval1024
    @romainwillerval10242 ай бұрын

    Incredibly instructive, well researched and fun. It’s so useful. Give us a simple way to financially support this video, the insane amount of work you put into it definitely deserves it. Keep going!

  • @shagral

    @shagral

    2 ай бұрын

    Thanks for the kind words! Memberships & supers are now active on the channel. Alternatively there are links to paypal and crypto in the description. Thanks, I appreciate the support!

  • @art_means_artificial

    @art_means_artificial

    Ай бұрын

    @@shagral examples movies in your video are just rubbish. I haven't seen really great movies

  • @cleverghostchili

    @cleverghostchili

    19 күн бұрын

    @@shagral not working, make sure you activate it in youtube studio

  • @shagral

    @shagral

    19 күн бұрын

    Weird, everything is "on" on my end. Just tested on another account and it works. Are you sure these are available in your region?

  • @SeitanicPanicc
    @SeitanicPanicc16 күн бұрын

    It comforts me that this video has only 1.4k views, because this proves that views and quality are unrelated. Amazing video!

  • @amirleon996
    @amirleon996Ай бұрын

    This is the BEST video I've seen on the subject and deserves an award, seriously!

  • @shagral

    @shagral

    Ай бұрын

    Thank you! Glad you enjoyed it. I think it deserves some views at least :3

  • @xonartutorials
    @xonartutorials4 ай бұрын

    I'm going to watch this whole video so that you get promoted in the algorithm. Love it so far!

  • @shagral

    @shagral

    4 ай бұрын

    Awesome, thanks ✌️

  • @semmussaev
    @semmussaevАй бұрын

    It is the best video about DR topic I've ever seen on youtube. Thank you for the good work!!! Please, don't stop!

  • @faridbodet7786
    @faridbodet778626 күн бұрын

    thank you very much, finally a video where we are not trying to sell you the latest camera, with wider rims and chrome mirrors. very informative, no lame marketing, no "amazing revolution" or "game changer" or "you absolutely need it", I had forgotten that you could still get information on KZread. thanks again

  • @e.adeloye
    @e.adeloye20 күн бұрын

    This is without a doubt one of the best videos on the topic. Very thorough not just from a theoretical side but from a practical side as well. Absolutely criminal this doesn't have more views

  • @shagral

    @shagral

    19 күн бұрын

    Thanks for watching!

  • @kennehtk
    @kennehtk4 ай бұрын

    Dude this video is so well done. The amount of effort you put into this is astounding. Great work. Excited to see your channel grow

  • @shagral

    @shagral

    4 ай бұрын

    Thanks for the kind words! ✌🏻️

  • @karthikeyanparasuraman9337
    @karthikeyanparasuraman933728 күн бұрын

    Dude!! This would be among the best video I have ever seen!! A creative person talking about the camera with such technicalilty with such depth, not shilling for any company, the humour in the video, DAMN!! I just wanna say this. Please don't look at the views and feel discouraged. You got the potential to be an amazing storyteller! An hour just flew by!! Please do make more videos! KZread needs people who can talk technicalities of image capturing, but also touch grass and speak reality. You just made my day amazing dude! Thanks for the 8 weeks of effort! Worth every minute (atleast for us lol)!!

  • @shagral

    @shagral

    28 күн бұрын

    Thanks so much for the comment! I'm very proud of the video, but will probably never make anything like that again, at least not purely on enthusiasm.

  • @DrifteRMTA
    @DrifteRMTA4 ай бұрын

    Incredible work, you need more views bro just keep it up and ur going to be huge much love

  • @shagral

    @shagral

    4 ай бұрын

    Thanks, will do! 🖤

  • @zahidhossain4211
    @zahidhossain4211Ай бұрын

    bro, I searched countless times what dynamic range is actually. watched many videos. your video never showed up. the most practical video I have seen about dynamic range

  • @shagral

    @shagral

    Ай бұрын

    I'm glad the algorithm finally got it to you 👍🏻

  • @JeffBourke

    @JeffBourke

    Ай бұрын

    This channel is going to be massive.

  • @dustinschmidtphoto
    @dustinschmidtphoto3 ай бұрын

    This is my new favorite KZread video of all time. F*@#ing fantastic work. Kudos to you. Deakins is at home in his living room giving it a golf clap as we speak.

  • @shagral

    @shagral

    3 ай бұрын

    Haha, thanks! I'm very proud of it. Shame the algorithm didn't cooperate this time, though.

  • @gillesvanleeuwen
    @gillesvanleeuwen3 ай бұрын

    Potato rig was amazing! Came here for information, stayed for the puns. Some gems of quotable lines in this video. Great great stuff.

  • @shagral

    @shagral

    3 ай бұрын

    Glad you liked it! Potato rig was later consumed with some beautifully seared steak. Waste not want not!

  • @gillesvanleeuwen

    @gillesvanleeuwen

    3 ай бұрын

    @@shagral ;D

  • @definingslawek4731
    @definingslawek47314 ай бұрын

    Super cool video, can't wait to watch this later!

  • @noahvasington
    @noahvasington4 ай бұрын

    Crazy good video so far. So glad youtube recommended it Edit: just finished, and I want to say thank you. This was super informative and never lost my attention. I had to watch in separate sessions due to my schedule, but this was something that I actively sat down to watch and gave my attention to. Excited to see more of your work

  • @shagral

    @shagral

    4 ай бұрын

    Glad you enjoyed it!

  • @tvstafford1989
    @tvstafford19894 ай бұрын

    You didn't have to go this hard. I already liked the video. But seriously, great job! It wasn't only delivering helpful information and facts. You synthesized those to give PERSPECTIVE! something we should all be looking for. Thank you for this.

  • @shagral

    @shagral

    4 ай бұрын

    Haha thanks! I wasn't planning to go this hard, it just sort of happened.

  • @PickDish
    @PickDish4 ай бұрын

    A quarter in and oh lord. Nice content, man! Can't wait to see more technical and factual breakdowns like those!

  • @shagral

    @shagral

    4 ай бұрын

    Thanks! and stay tuned for more

  • @TheJericho1777
    @TheJericho17774 ай бұрын

    Insanely good video

  • @shagral

    @shagral

    4 ай бұрын

    Thank you! 🙌🏻

  • @Julio260375
    @Julio260375Ай бұрын

    Amazing video! 🤯

  • @ArnaudDelaunay
    @ArnaudDelaunay24 күн бұрын

    Amazing video !!!!

  • @7-bs
    @7-bsАй бұрын

    love this ! thank you for working that hard on such an informative video

  • @shagral

    @shagral

    Ай бұрын

    Thanks! Glad you like it!

  • @MocFilmmaker
    @MocFilmmaker4 ай бұрын

    Highlights: 00:00 The camera industry has misled us with dynamic range numbers, but understanding technical aspects and addressing noise can improve sensor sensitivity and dynamic range. 08:58 The digital translation of voltage in cameras is limited by the analog to digital converter, determining the dynamic range of the sensor and leading to differences in color grading between photos and videos. 14:08 Light is linear but our perception is not, so cameras use logarithmic gamma to compress highlights and expand shadows, limiting dynamic range without increasing bit depth. 20:15 CineD and Gerald Undone's focus on Imatest scores can lead to confusion, as in-camera noise reduction, raw format differences, and other factors can inflate dynamic range numbers, making accurate comparisons difficult. 28:17 Professional video cameras operate in 12-bit readout mode, with exceptions like Fujifilm's XH2S and Canon's DGO cameras in 14-bit mode, but the jump to 14-stop dynamic range comes with a significant cost increase, and camera choice for production is based on various factors, not just dynamic range. 33:05 Dynamic range in cinema camera design is a conscious choice, but the pursuit of ultimate image quality may be more theoretical than practical, with the focus on achieving a specific aesthetic rather than matching the capabilities of our eyes. 37:29 Understanding dynamic range is crucial for achieving a punchier image and mimicking our visual experience, with modern post-production techniques and lighting control being key in filmmaking. 43:19 Dynamic range in cameras is a creative choice, not a limitation, and the value of art and creativity cannot be reduced to technical specifications, as true art comes from simplicity and the quest for essence and truth.

  • @phfx
    @phfx4 ай бұрын

    Heh. We must be in sync. You'll love what I'm publishing this week. And I am indeed one of those who tests cameras professionally.

  • @shagral

    @shagral

    4 ай бұрын

    I'll check it out! Thx for stopping by

  • @user-us8pc8oh4l
    @user-us8pc8oh4l19 күн бұрын

    Thanks!

  • @shagral

    @shagral

    19 күн бұрын

    Awesome, thanks so much 🙌🏻

  • @sergiofilmmaker94
    @sergiofilmmaker943 ай бұрын

    All my questions have been answered 🙌🏻

  • @shagral

    @shagral

    3 ай бұрын

    Awesome! Thanks for watching 👍🏻

  • @raeus571
    @raeus5714 ай бұрын

    I loved the video so much!! one piece of advice: when lighting yourself, try to avoid having a patch of near-crushed shadow on yourself, it's simply unnatural.

  • @FULLofJOHN
    @FULLofJOHNАй бұрын

    What about the sigma fp? It records in dng

  • @cleverghostchili
    @cleverghostchili19 күн бұрын

    btw for the xh2s the engineers state in an interview the xh2s is actually 14bit processing, but not readout. Not entire sure what the equates to kzread.info/dash/bejne/dqKe2pmKeKSyebQ.htmlsi=BBGWp4Tw9432x7RV

  • @geekdaddiy
    @geekdaddiy4 ай бұрын

    How does this only have 174 views?$

  • @shagral

    @shagral

    4 ай бұрын

    Just posted it yesterday. My videos usually take a month to take off (if they ever take off). Hopefully this will improve

  • @gillesvanleeuwen
    @gillesvanleeuwen19 күн бұрын

    @22:00 You say not all raw's are created equal. Do you have some more info or a place where I can find more info?

  • @shagral

    @shagral

    19 күн бұрын

    I definitely have plans for another myth-busting episode about RAW, so stay tuned for that. In the meantime, you can read this article I wrote for my blog a couple of years ago. It doesn't directly answer your question, though. shagral.com/blog/raw-video-is-not-magic

  • @gillesvanleeuwen

    @gillesvanleeuwen

    19 күн бұрын

    @@shagral Thanks! I know some raw formats are compressed and others are not. And also that some are debayerd already. But you give the impression of more differences and the 'meat scale' implies there's an order to the different raw formats. That's what I'm curious about.

  • @shagral

    @shagral

    19 күн бұрын

    Yes, that's basically what the "RAWness" scale is about. From compressed and partially debayered (BMR, CRL) to compressed (R3D, ProRes Raw) to completely uncompressed (ARW, DNG). Also a lot of people don't realise just how much stuff happens to the signal before it is recorder as RAW. The old adage of "raw sensor data" is a myth and an oversimplification. But the most interesting discussion to me is the idea that RAW = image quality. That't the most misunderstood one.

  • @gillesvanleeuwen

    @gillesvanleeuwen

    19 күн бұрын

    @@shagral Thanks for the article. That was informative.

  • @cleverghostchili
    @cleverghostchili19 күн бұрын

    thank you, I've always felt DR xyla tests never painted the full picture, just could never prove it. I may still need to borrow that tin foil hat

  • @shagral

    @shagral

    19 күн бұрын

    Any time! Can't be too careful!

  • @art_means_artificial
    @art_means_artificialАй бұрын

    examples movies in your video are just rubbish. I haven't seen really great movies

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