We wasted even more time Testing ISO Invariance

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  • เผยแพร่เมื่อ 27 ก.พ. 2019
  • Spoiler: you can make underexposed raw files look almost identical in any raw processing software if you tweak the sliders enough.
    Learn EVERYTHING about noise and ISO invariance here: photographylife.com/iso-invar...
    Watch Tony's original video that started all of this here: • ISO is totally FAKE. S...
    Watch our video that attempts to mythbust 2 of Tony's claims: • Mythbusting Tony's ISO...
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ความคิดเห็น • 691

  • @jmagyar
    @jmagyar 5 ปีที่แล้ว +264

    Everyone just don't get it. Tony managed to get EVERY camera blogger/Vloger to say his name and channel at least 5 times... You can't buy better advertising....Great Job Tony!

    • @uncoy
      @uncoy 5 ปีที่แล้ว +13

      And damaged his credibility still further. Way to go Tony - social media climber and disseminator of false information.

    • @MrRaitzi
      @MrRaitzi 5 ปีที่แล้ว +23

      Tony "I want to thank our sponsor Squarespace" Northup

    • @izoyt
      @izoyt 5 ปีที่แล้ว +5

      true, it's classical clickbait video. but on the other hand, it's sad, that you "have to" make bs content, just to be popular. and ever worse, it's not about what's right, it's about making clicks and making selfies these days.

    • @robert7622
      @robert7622 5 ปีที่แล้ว +30

      And in the end like always he was 95% right...

    • @robert7622
      @robert7622 5 ปีที่แล้ว +18

      @@uncoy This video backs up what Tony was saying, Images look "almost" identical.

  • @eyeeyeoh
    @eyeeyeoh 5 ปีที่แล้ว +110

    Can I recover images shot through a lens cap with my Leica?

    • @JodyBruchon
      @JodyBruchon 5 ปีที่แล้ว +11

      Yeah, there's a procedure for that. Remove the cap, go back to where you shot the image, shoot the image again. Fixed! :D

    • @DaveHaynie
      @DaveHaynie 5 ปีที่แล้ว +7

      Yeah, those $95 lens caps allow for that!

    • @abhijitmeti1611
      @abhijitmeti1611 5 ปีที่แล้ว

      Wait !! What?

    • @DaveHaynie
      @DaveHaynie 5 ปีที่แล้ว

      @@abhijitmeti1611 Only half-snark here... you can't actually shoot through a Leica lenscap. Some of them do actually cost $95.

    • @abhijitmeti1611
      @abhijitmeti1611 5 ปีที่แล้ว

      @@DaveHaynieyeah bro I known but what's that special in them

  • @JohnMayfield-NS
    @JohnMayfield-NS 5 ปีที่แล้ว +53

    FStoppers - the number one drill photography channel on youtube.

  • @jackkraken3888
    @jackkraken3888 5 ปีที่แล้ว +264

    Rubbish. You didn't try MS Paint.

    • @KamilsView
      @KamilsView 5 ปีที่แล้ว +4

      :-) the best comment today!

    • @PossMcLeod
      @PossMcLeod 5 ปีที่แล้ว +2

      😂🤣😂

    • @StoltHD
      @StoltHD 5 ปีที่แล้ว +4

      Its upgraded to Paint 3D

    • @unclchunk
      @unclchunk 5 ปีที่แล้ว +3

      ^winner

    • @johnnyviva9017
      @johnnyviva9017 5 ปีที่แล้ว +2

      LoL

  • @EDHBlvd
    @EDHBlvd 5 ปีที่แล้ว +30

    2016: Fujifilm ISO is fake
    2019: ISO is fake
    2019 a couple days later: ISO is still fake

  • @stankmt5016
    @stankmt5016 5 ปีที่แล้ว +140

    I walk around shooting black images because that's what pros do :)

    • @BookmansBlues
      @BookmansBlues 5 ปีที่แล้ว +41

      In reality it's because you left the lens cap on. :P

    • @LMoProVisualComm
      @LMoProVisualComm 5 ปีที่แล้ว +1

      Awesome!!!! LOL!!!

    • @PossMcLeod
      @PossMcLeod 5 ปีที่แล้ว +1

      @@BookmansBlues 😂🤣😂

    • @kevindiaz3459
      @kevindiaz3459 5 ปีที่แล้ว +3

      Stan KMT - and the shoot in P mode too, since that stands for pro!

    • @kevindiaz3459
      @kevindiaz3459 5 ปีที่แล้ว +11

      @@BookmansBlues Yeah but Sony has such badass DR that you can still recover the images even with the lens cap on.

  • @fiftytwo50
    @fiftytwo50 5 ปีที่แล้ว +12

    "We did all of this work but none of this really matters." Welcome to every hobby I've ever had.

  • @imiy
    @imiy 5 ปีที่แล้ว +201

    But really this is a drill advertisement

    • @Cryect2
      @Cryect2 5 ปีที่แล้ว +5

      FStoppers always selling out :)

    • @jason.simone
      @jason.simone 5 ปีที่แล้ว

      Imiy I thought it would be a Tide advertisement

    • @PossMcLeod
      @PossMcLeod 5 ปีที่แล้ว +1

      LOL!!! I was thinking the same thing, WHAT'S WITH THE FEKKIN DRILL!? 😂🤣😂 You gotta admit, it's one sexy drill tho :P

    • @williaml1570
      @williaml1570 5 ปีที่แล้ว

      the other week he throttled his USB card reader to 15 from 60 and called it like that happens fluidly in the wild. Now he's saying ISO is just another exposure bracketing method to correct in post before heading straight for the drill shot.
      Ill put it this way I've heard way more whacky conspiracies than this one amigo.

    • @vuquylam93
      @vuquylam93 5 ปีที่แล้ว

      have you learned anything about photography? it's clearly an impact driver!!

  • @jojoaausone
    @jojoaausone 5 ปีที่แล้ว +27

    Conclusion: the D850 is awesome.

    • @grandpascuba
      @grandpascuba ปีที่แล้ว

      I have a D810. It’s pretty good too.

    • @sovu9399
      @sovu9399 3 หลายเดือนก่อน

      Pentax k1 kills it easily😏

  • @ToreHansen
    @ToreHansen 5 ปีที่แล้ว +52

    Hail to everybody who remember ASA

    • @HesselFolkertsma
      @HesselFolkertsma 5 ปีที่แล้ว +2

      Tore Hansen Salute! 🖖

    • @richardlatshaw1119
      @richardlatshaw1119 5 ปีที่แล้ว +4

      Just don't forget to pronounce it 'A - Suh".

    • @sharonraizor2839
      @sharonraizor2839 5 ปีที่แล้ว +1

      Hear, Hear!

    • @newnastyn
      @newnastyn 5 ปีที่แล้ว +2

      Seems like a long time ago. Oh boy I am getting old... I even remember ilford ID11 for those ASA films...

    • @jojoaausone
      @jojoaausone 5 ปีที่แล้ว +7

      Tony has certainly raised a DIN in the photo nerd community. 😉

  • @tweed0929
    @tweed0929 5 ปีที่แล้ว +16

    Your DeWalt is too noisy. I'm gonna get a Milwaukee.

  • @brucedeo1981
    @brucedeo1981 5 ปีที่แล้ว +7

    All these images are basically identical. All tiny little details, are only profile diffences (except from the black dots) could be made to look identical, and in no way (in a blind test) one could find which is better than other. Basically Tony is correct -at least for modern sensor cameras-
    10 years ago, with older canons these differences would be absolutely devastating not tiny hair noise signatures.

  • @Patgelsinger
    @Patgelsinger 5 ปีที่แล้ว +4

    I'm starting to think that the only difference between image quality in camera brand (AKA: Canon VS Nikon) is just 100% Software, and how good the maths are good in the code that apply enhencement to pics we take in-camera

  • @starmontstarsmedia9363
    @starmontstarsmedia9363 5 ปีที่แล้ว +32

    I like how you guys always drill down to the essence of a topic, yet keep it from being boring.

    • @shivamnegi7149
      @shivamnegi7149 5 ปีที่แล้ว +5

      oh the pun

    • @PossMcLeod
      @PossMcLeod 5 ปีที่แล้ว

      😂🤣😂

    • @johnrussell593
      @johnrussell593 4 ปีที่แล้ว

      If you use a large bit do you get a bit more noise than using a small bit?

  • @woodygreen6826
    @woodygreen6826 5 ปีที่แล้ว

    Thanks for taking the time to do this. It can't be a surprise that software and in camera processors all handle files a little differently, but some people need it to be shown to them. :)

  • @mongini1
    @mongini1 5 ปีที่แล้ว +3

    i did the same test with my A7 III and if i take a ISO 100 and push it to 1600 - its not as good as a 1600 shot. BUT: if i take an ISO 800 Shot and push it to 12800, its indistinguishable. Thats because of the 2nd gain circuit of the A7 III which kicks in at ISO 640. So i took an ISO 50 Shot (which is a processed ISO 100) pushed it 3 stops to get ISO 400 and it looks identical too. So for that Matter the A7 III at least is "dual invariant".

    • @uncoy
      @uncoy 5 ปีที่แล้ว +1

      And Roberto has the correct answer. At last someone paying attention.

  • @chriswellz5993
    @chriswellz5993 5 ปีที่แล้ว +1

    The part that I think most people should be asking.... is that if those black spots and artifacts are not noticeable by the naked eye and only noticed when you zoom in to the point where you start seeing the pixels.........does it matter that they are there? Nobody is looking at pictures in that way. The consumer sure as hell isn't. So Tony does bring up a very relevant point concerning this ISO topic. The comparisons look virtually identical when zoomed out to default. We deal with something similar in music production when comparing analog vs digital. Analog is analog, so when doing a pitch bend on a synth, it's going to be smooth unbelievably. But in the digital world, that pitch bend is like little small steps. Looks like stairs. And once you start producing music at higher sample rates, those steps (despite being there) are virtually indistinguishable compared to the analog synth. The only people who care about it are producers, analog gear producers, digital producers. But the consumers aren't noticing any of this crap. The same with audiophile people. The stuff they talk about regular consumers don't even give a crap about. So are we trying to impress other photographers, other producers, other people's eyes and ears in our field, or the consumer?

  • @DanielChetroni
    @DanielChetroni 5 ปีที่แล้ว +3

    It would be interesting to see a comparison of the post from the actual lightroom (2019) and a 5/10 years old lightroom. I think the exposure boosting will give us big differences between those two.
    The thing here is not the small variations after the exposure boost in post, but the really good job that software companies does with each new release.

  • @justinwatson384
    @justinwatson384 5 ปีที่แล้ว +34

    As soon as I read that title from your last vid, I knew you would have a nerd uprising haha

  • @steffensylvestnielsen5549
    @steffensylvestnielsen5549 5 ปีที่แล้ว +11

    Try the other way around, with over exposing. Would be interesting to see if the results are similar 👌🏼

    • @anthonygeorgiou3926
      @anthonygeorgiou3926 4 ปีที่แล้ว

      Well, there would be way more differences because that also dependa on the camera's Dynamic range( Higher d.r. equals to less clipping on highlights( in the case of being overexposed) )therefore the files wouldnt be the same at all, except if all cameras have simillar dynamic range.

    • @TernaryM01
      @TernaryM01 2 ปีที่แล้ว +2

      No, it doesn't work with overexposed images. If the whites are blown out, there is no way to get back the detail by reducing the exposure. Think of the brightness of the sensor readout as being a number ranging from 0 to 1. If an area is too bright, it's clipped at 1. On the other hand, if something is too dark, it's never truly 0; rather, it becomes a very small number like 0.01. Because there is no clipping at the bottom, the information is not lost. Suppose you have 2 pixels at brightness 0.7 and 0.8. If you double the ISO, which amounts to doubling the numbers, they both become 1, i.e., indistinguishable from each other.

  • @jasoncox9256
    @jasoncox9256 5 ปีที่แล้ว +3

    RED cinema cameras have advertised for a while that ISO is arbitrary and set post raw capture. I think the differences that are coming out will bring to light the quality of sensors, noise patterns, & software algorithms that separate the lower from higher quality equipment.

  • @TL-xw6fh
    @TL-xw6fh 5 ปีที่แล้ว +29

    You're so right. All this doesn't really matter, just enjoy taking photographs! Unfortunately, the huge advances in sensor technology and software has created a "class warfare" amongst the nerds who do not take photographs but simply focus all their energy and hate on any camera brand that they do not own or like. Truly sad.

    • @scallen3841
      @scallen3841 5 ปีที่แล้ว +3

      And without Lightroom to save them ,

    • @therainbowgulag.
      @therainbowgulag. 5 ปีที่แล้ว +5

      I've used Canon, Nikon, Sony, Panasonic, Olympus, Fuji and they are all great.

    • @jamesridley184
      @jamesridley184 5 ปีที่แล้ว +2

      t Lim so true did Ansel Adams worry about this you don't get famous chasing technical stuff its all about the creator

    • @scallen3841
      @scallen3841 5 ปีที่แล้ว +3

      @@jamesridley184 He spent hours in the darkroom to get it right

  • @michaelmenzel5053
    @michaelmenzel5053 5 ปีที่แล้ว +22

    You can set any boost in Darktable, the slider only goes up to 3, but when you left click on it you can enter any value.

    • @FStoppers
      @FStoppers  5 ปีที่แล้ว +4

      Michael Menzel I have to say, using Darktable for 20 mins made me want to completely remove it from this video. That program....okay I can’t even! -P

    • @FStoppers
      @FStoppers  5 ปีที่แล้ว +2

      Michael Menzel that being said, I was able to push it 3 stops and then add another exposure instance and push that 1 stop so it should be the same result as 4 stops. -P

    • @jamespulver3890
      @jamespulver3890 5 ปีที่แล้ว +5

      @@FStoppers I kind of wish you'd looked at RawTherapee.

    • @FrankWalsh
      @FrankWalsh 5 ปีที่แล้ว +5

      @@FStoppers I feel the same way about photoshop.

    • @michaelmenzel5053
      @michaelmenzel5053 5 ปีที่แล้ว +6

      @@FStoppers Haha, it was the same for me. But after I invested some (more) hours I saw the value of it. The function are more "raw" than in the other programs, You have more power and for the stuff I do (astrophotography etc.) this is really helpful. But it makes it really hard to learn.

  • @davidfield2503
    @davidfield2503 5 ปีที่แล้ว +26

    This becomes a best raw post process comparison video too. Thx.

  • @mynameisdeleted
    @mynameisdeleted 5 ปีที่แล้ว +5

    I'd have pushed darktable and luminar an extra stop or fraction thereof to make them appear equally bright... before comparing their shadow noise and equally bright final result as measured by histogram.... Ideally I'd have matched the histogram peak the the same brightness in all raw programs and possibly matched their contrast settings to make the histograms equally spread before comparing shadow noise, as some may default boost shadows more than others.

  • @DanielVeazey
    @DanielVeazey 5 ปีที่แล้ว

    I did my own experiment with a D3300 and the underexposed image had a lot of red in it when I brought the exposure up. Lighting was the same for both images, taken seconds apart, with only the ISO changed between the two.

  • @rodrigodepierola
    @rodrigodepierola 5 ปีที่แล้ว +30

    If the complaint is that "if you boost an image 5 stops it isn't 100% exactly the same, only 99.3%" the basic thesis stands.

    • @cmkimbrell67
      @cmkimbrell67 5 ปีที่แล้ว +2

      I dunno man, that's a lot of noise. I don't think it holds up.

    • @lukeadv
      @lukeadv 5 ปีที่แล้ว +1

      @@cmkimbrell67 The noise was basically the same between ISO 3200 and ISO 100 (boosted in post).

  • @sharonraizor2839
    @sharonraizor2839 5 ปีที่แล้ว +18

    As a professional audio chick, I am more concerned about the poor speaker placement on his near-field monitors.

    • @charankol
      @charankol 5 ปีที่แล้ว

      what would be the correct place?

    • @thecommenter578
      @thecommenter578 5 ปีที่แล้ว +2

      @ does the audio change depending on which side the speaker is on the table??

    • @andrewmckenley5355
      @andrewmckenley5355 5 ปีที่แล้ว +1

      What's your IG? Im also an Audio Engineer. Let's network!

  • @Chopperbob56
    @Chopperbob56 5 ปีที่แล้ว +1

    Thanks for taking the time ! good job guys !!

  • @davidfrisken1617
    @davidfrisken1617 5 ปีที่แล้ว +9

    So Tony was correct.
    It really shows how poorly Adobe handles raw files. This has also been my experience with the raw files from a 5DSR compared to the Canon software's processing. It's good to know it isn't just a problem with Canon raw processing by Adobe.

    • @krane15
      @krane15 5 ปีที่แล้ว +1

      All this proves is that some cameras have carry more data making their ISO less specific.

  • @paulwright3261
    @paulwright3261 5 ปีที่แล้ว

    Great video man! I appreciate your attention to detail and telling it the way it is!

  • @automat8
    @automat8 5 ปีที่แล้ว +1

    Thanks. I did a real simple test shooting the same image correctly exposed, while changing the iso (D810) from 100 to 400 to 800. The camera makes a cleaner image at 100.

  • @mattslaboratory5996
    @mattslaboratory5996 5 ปีที่แล้ว +1

    Sorry to be so serious, but for the final comparison, you need to do the PS tweaking on the Correctly exposed file as well as the boosted one, in order to compare them. I bet the correctly exposed one can be made better. But great series! I'm thinking two stops under might be a sweet spot, depending how your camera handled highlights. I think I'll try it a bit.

  • @JimBateyPhotography
    @JimBateyPhotography 5 ปีที่แล้ว +9

    Great work. I agree with your conclusions.

  • @Bazzasphotolife
    @Bazzasphotolife 5 ปีที่แล้ว +1

    Hi there, thanks for the learning. Do you have a sense for how Raw Therapee would perform in comparison?

  • @98JamesNixon
    @98JamesNixon 5 ปีที่แล้ว

    When shooting high ISO’s in low light is it better to set a slightly lower iso like 1600 and boost one or two stops, or should I just set correct exposure no matter what the iso is?

  • @ryanshotison6152
    @ryanshotison6152 5 ปีที่แล้ว +12

    But what happens if you overexpose with high ISO by 4 stops and then drop the exposure back down in post?!
    We need more of your time wasted!

    • @jojoaausone
      @jojoaausone 5 ปีที่แล้ว +4

      I'll save him the trouble...you blow out the highlights.

    • @thecommenter578
      @thecommenter578 5 ปีที่แล้ว +3

      Once the ISO gain is applied in camera I dont think you can recover information from there so you lose dynamic range

    • @MiguelMakesMusic
      @MiguelMakesMusic 5 ปีที่แล้ว +2

      this is what I commented on their last video, you can't claim a camera is ISO invariant if the reverse isn't also true!

    • @stevenkothenbeutel448
      @stevenkothenbeutel448 5 ปีที่แล้ว

      I would like to see an 8 or even a 10 stop underexposure and while you are at it... a 8 or even a 10 stop over exposure. you can do eeeet!

  • @Luxumbra69
    @Luxumbra69 5 ปีที่แล้ว

    So glad to hear this. I've often found myself worrying about having my blacks too black and often tend to over expose.
    Now I know to err on the side of underexposure.
    Thanks guys!

  • @GeneWaddle
    @GeneWaddle 5 ปีที่แล้ว +88

    Oh, but you didn't test every camera there is and every program there is. What good is that? I'm also sure you used the wrong subject and the wrong color background. 😛

    • @pelafotofotografia
      @pelafotofotografia 5 ปีที่แล้ว +1

      Isso mostra claramente quão poderosa é a Nikon D850. Mas estes testes, se feitos com qualquer câmera Canon, o resultado final será muito diferente com ruídos estrondosos.

    • @happythec1am
      @happythec1am 5 ปีที่แล้ว +2

      Gene Waddle he also should test all the different white balances with every Nikon lens, and all the different color drills. :)

    • @speecher1959
      @speecher1959 5 ปีที่แล้ว +6

      And no full frame vs. APS-C comparison. WEAK! ;-)

    • @GeneWaddle
      @GeneWaddle 5 ปีที่แล้ว

      @@happythec1am I don't know why he didn't think of that.

    • @lylestavast7652
      @lylestavast7652 5 ปีที่แล้ว +3

      AND, no sheep. what the heck ????

  • @PauloParreira
    @PauloParreira 5 ปีที่แล้ว

    You, Tony and others i consider the best youtubers in the photography art and youtube hype... just keep it going.

  • @BookYourImagination
    @BookYourImagination 5 ปีที่แล้ว

    Thank you so much for these videos - it clears up a lot!

  • @iz1907
    @iz1907 5 ปีที่แล้ว

    thanks for your work.
    I have a comment about those black pixels on your shots. You can see them in every editor you use. They are dead pixels of the sensor. I'm actually surprised how many your camera has.
    You can use remap sensor feature of your camera to remove them.

  • @GoneToHelenBach
    @GoneToHelenBach 5 ปีที่แล้ว

    As you pointed out, you can make a few adjustments with the noise removal sliders and get it to look lust like the ISO1600 file, but then you can also make those same adjustments to the ISO1600 file to make it look even better still. The bottom line is...there's little difference between an under-exposed image (taken at a low ISO) that's pushed in post and a correctly exposed image (taken with a higher ISO) but there is still a difference and we all want the best image possible, so correctly expose in camera or, perhaps, allow it to be under-exposed by just one stop to ensure you don't blow out the highlights, then recover the shadows with only a one stop push.

  • @VaughnFelixMusic
    @VaughnFelixMusic 5 ปีที่แล้ว +16

    People with cameras are hate and trolls these days. :(

    • @kevindiaz3459
      @kevindiaz3459 5 ปีที่แล้ว +5

      Not all of us, just an overly vocal minority. It's like if you worked at a prison, eventually you start to think everyone is a criminal. Most the troll types seem to have nothing better to do with their time. The non-trolls are out taking photos and not really caring what anyone has to say about it. Just enjoy what you do and what you have to do it with.

  • @whiskycola5185
    @whiskycola5185 5 ปีที่แล้ว +3

    Switching between pictures without putting a complete different picture between them is useless for youtube, because there are using A and B Frames only A Frames are true... When you switch direct to a similar picture there a information from both pictures in the second one specially in the beginning

  • @sooocheesy
    @sooocheesy 5 ปีที่แล้ว

    What if you shot a bright object (light bulb/reflections) that would max out the sensor to the point of clipping and did this with ISO100 being 'properly exposed' and ISO3200 being totally blown out? Would meeting in the middle end up looking the same? I think you need to make another video.

  • @jandrogc
    @jandrogc 5 ปีที่แล้ว +1

    Thanks! It's realy interesting. Nothing as a bit of testing ... I think I'll do the same with my Canon. Good job.

  • @PischkePerformance
    @PischkePerformance 5 ปีที่แล้ว

    I wonder if you used a camera with a worse sensor, if you would get a bigger difference in quality? The Nikon D850 is often touted as having one of, if not the best sensor in any camera out right now. That may play into why it's able to be pushed and pulled in post with almost no image degradation. A more budget camera, like say a Nikon D7500 has less dynamic range on the sensor level and might produce an image that falls apart when pushed 4 stops. No idea if it would, just something I was thinking about! Great video guys!!

  • @paulj2383
    @paulj2383 5 ปีที่แล้ว

    Very good explanation, quick, very upbeat and practical

  • @BachPhotography
    @BachPhotography 5 ปีที่แล้ว

    Cool ISO comparison video. As someone who sometimes shoots band photography at ISO4000+ this was really interesting and useful

  • @Daijobustory
    @Daijobustory 5 ปีที่แล้ว

    But would heavily underexposing retains more details in highlight tho? If so then will shooting at 100 ISO always be better in high dynamic range scene?

  • @MitchelStewart
    @MitchelStewart 5 ปีที่แล้ว +1

    Canon does do it !! I tested... I got same results as you. Actually my canon at 100 with a totally black pic came out very clean in post when I boosted the exposure.

  • @Foodgeek
    @Foodgeek 5 ปีที่แล้ว

    It makes sense. The boosting the image for high ISO is done before the conversion to RAW, so even with a RAW file are not as good off , as just turning up the ISO.
    Fine debunking of this "myth" :)

  • @thelifeofjools8384
    @thelifeofjools8384 5 ปีที่แล้ว +1

    I thought you did a pretty amazing job to be honest....hats off ! Very interesting video 👍

  • @familjenkh3734
    @familjenkh3734 5 ปีที่แล้ว

    I think that this is a great test. This opens up for a more creative way of photographing. Not being afraid of underexposing with the ISO may be a creative alternativ in some cases.

  • @BillFerris
    @BillFerris 5 ปีที่แล้ว

    Thanks for comparing all the apps and how each handles pushing images in post. That was interesting.
    FWIW, I think of ISO invariance as another tool in the tool kit. It's not a process Is recommend anyone adopt for all their photography, But when I need it, it's handy.
    Sports photography is one example. That's a scenario where, if I'm shooting in an indoor venue, I might use a 1/1000 shutter speed with the lens wide open and still need ISO 3200 or higher to get a pleasing lightness to the photos.
    My exposure (shutter speed and f-stop) are fixed. Only image lightness needs to be set. With an ISO invariant camera, I might choose a 1-2 stop lower ISO to protect highlights knowing that I can boost image lightness in post without sacrificing image quality.

  • @ajschot
    @ajschot 5 ปีที่แล้ว

    There is always a analoge boost of the voltages so their will ‘always’ be a slight different between under exposed shots and normal shots

  • @Johannes
    @Johannes 5 ปีที่แล้ว

    Did you try the "Enhance photo" in Camera RAW? Would be interesting to see.

  • @unclchunk
    @unclchunk 5 ปีที่แล้ว +4

    "None of this really matters at all. Get back to takin' pictures"
    Nuff said

  • @specialized41
    @specialized41 5 ปีที่แล้ว +3

    Nothing better than a correct Exposure.!!! Forget post-processing.!!

  • @toxictabasco
    @toxictabasco 5 ปีที่แล้ว

    Thanks for the additional effort with great outcome. As you stated, nothing ground breaking here. But, I still would like to see the same 4 or 5 stop exposure push with real life long exposure that's done shooting the milky way. Yes, 10 to 15 second exposure, without in-camera NR, at f/2.8, at ISO 6400 or 8000 with the D850. After all, it what the D850 can do that others can't.

    • @TheHikeChoseMe
      @TheHikeChoseMe 5 ปีที่แล้ว

      i was just thinking about milky way shots. i usually go 3500 iso and about 20 sec exposure. hmmm..

  • @dev1n
    @dev1n 5 ปีที่แล้ว +1

    what if u just shoot under by 1 or 2 stops, would it look better?

    • @sexysilversurfer
      @sexysilversurfer 5 ปีที่แล้ว +1

      If you want to protect highlights.

  • @DrewMtl
    @DrewMtl ปีที่แล้ว

    Thanks for the links etc. Very interesting, not sure if it's helpful yet. still trying to figure out those graphs on the link.

  • @mediamannaman
    @mediamannaman 5 ปีที่แล้ว

    OK, no surprises, but I’m still glad you did this test. I learned a number of things from it.

  • @javypc
    @javypc 5 ปีที่แล้ว

    In the past, when I started shooting RAW, when the picture came out underexposed I thought it did not matter because I finally fixed it in Post. but then I realized, even now, that the best thing will always be to expose correctly, not only for the time saving, but because in the end the quality is usually better. I don’t know if with ISO invariance is the same, but, a part of being a good photographer is to know how to expose well. If I’m in a portrait session, normally I will show to the client some shots, and I don’t want to show underexposed images and have to tell them “oh, don’t worry, I will fix it in post”

  • @ChocoLater1
    @ChocoLater1 5 ปีที่แล้ว

    Good stuff. Please do these tests with more cameras with different sensor sizes. Also add 2nd type of experiment with shadow slider. Thanks. Make it a series. Because why not.

  • @tylerHphoto
    @tylerHphoto 5 ปีที่แล้ว +1

    why would you want to make more work in post? I want to get it right when I take the photo so I don't have to do as much work in post.

  • @rmatveev
    @rmatveev 5 ปีที่แล้ว

    I'd like you to compare 12-bit RAW vs 14-bit RAW. This is the thing should influence much on the image quality in case of 4-5 stops underexposure.
    I did this on my own several years ago with my Nikon D7000 and I was impressed how RAW file can be handy in case of underexposure (and even overexposure) cases.

  • @jonhiguaca
    @jonhiguaca 5 ปีที่แล้ว

    Awesome. I like to shoot 2 stops under specially at night and with flash. It always seems to work better.

  • @back2lay
    @back2lay 5 ปีที่แล้ว

    But if the camera is making the ISO decision after taking the photo as Tony claims, why can we not recover details from the highlights when they blow out.? I am talking about if you had your ISO set to 1600 by mistake for some reason.

  • @josecolon8143
    @josecolon8143 5 ปีที่แล้ว

    I don’t care about what people say about you Lee, keep your OCD alive bring more videos of this nature, I love them!

  • @stevenqirkle
    @stevenqirkle 5 ปีที่แล้ว

    I actually learned a lot from this whole ISO thing. It's not something I had ever really thought about before, and watching these videos I think has given me a more solid understanding of how ISO works and how it relates to other things like shutter speed, aperture, sensor size, etc. I even ran my own test (with similar results to what you found) which got me more experience using fully manual settings... something which I don't normally do. Is this stuff super important? Probably not... but I do think having a better understanding of how cameras and image processing works makes me a more competent photographer. So I don't think this is a waste of time - even if the results ended up just confirming your expectations.
    Next I would be curious to see whether it's better to be underexposed by 4 stops or overexposed by 4 stops. E.g. in a high contrast photo is it better to get your subject properly exposed and try to recover the highlights in post? Or is it better to "protect the highlights" by under exposing a little and bring up the exposure later in post. We've seen that modern cameras give us a ton of flexibility when correcting under exposed images... is the same true of over exposed images? If not, then the takeaway might be that it's better to err a little bit on the side of underexposure.

  • @d0qtrx
    @d0qtrx 5 ปีที่แล้ว

    This is an interesting conversation we're having on this topic.
    Always better to get it right in camera, but it's nice to know that if you are shooting by hand, not stabilized, you can probably shoot underexposed a few stops faster with your shutter speed instead of raising the ISO and still do a fairly good job of pushing the exposure in post. You can remove noise a lot more easily than motion blur.
    Of course it all depends on how your camera handles amplifying the signal off the sensor. Again-- another reason why you need to KNOW what your gear can do.

  • @ALSAHAFI13
    @ALSAHAFI13 5 ปีที่แล้ว

    3:18 I'm just curious, why not load all the photos into stack at once instead of dragging them individually and resizing them?

  • @jonathanfr95
    @jonathanfr95 5 ปีที่แล้ว

    What is you try to expose the 100 ISO photo right while shooting: Will the image be better that the 1600 ISO in term of grain?

  • @timobjork5181
    @timobjork5181 5 ปีที่แล้ว

    I have Sigma SD Quattro. Usually have to shoot with iso100-400, because the noise is really bad in iso800 and foveon sensor is real reason for it. Transforming x3f files to dng with wrapper, in lightroom edit have to add more 2-3 stops of light to picture for getting ”right results”.😅 Maybe the hardest camera i have ever used, but not impossible to shoot. Only if you know what are you doing.

  • @rodrigo4379
    @rodrigo4379 5 ปีที่แล้ว

    i cant edit a 4 stops nor 3 stops underexposed of my sl2.....

  • @tonytfuntek3262
    @tonytfuntek3262 5 ปีที่แล้ว +17

    Is it possible that when you set your camera to a higher ISO that maybe the firmware in the camera adds a little noise reduction ?

    • @FStoppers
      @FStoppers  5 ปีที่แล้ว +4

      Tony tFuntek that def seems to be happening! -P

    • @v0ldy54
      @v0ldy54 5 ปีที่แล้ว +1

      Most cameras don't do it, that I know only Sony atm unfortunately does it on long exposure

    • @GregConquest
      @GregConquest 5 ปีที่แล้ว +2

      Or, during the conversion from analog to digital, some information is necessarily lost (compression). Is one photosite 0.33333334 or 0.33333335? Digital must decide, whereas analog is boosted with every single photon read and is closer to 0.33333333217452. If boosting happens before digitization, the full uncompressed signal is boosted. If the data is boosted after compression, the signal that was thrown away during digitization cannot be boosted. Information is lost by boosting after digitization.

    • @912582
      @912582 5 ปีที่แล้ว +2

      That's exactly what's happening - and Nikon are very good at it. They just set the firmware to do the work - all can and do this to differing degrees. Hence "iso" is not necessarily fake but is manufactured and can be different - nota physical entity like shutter speed and aperture.

  • @rfzw
    @rfzw 5 ปีที่แล้ว

    I would like a tutorial of how you processed the ISO100 photo pushed 4 stops to be cleaner than the ISO1600 shot

  • @wikrap1
    @wikrap1 5 ปีที่แล้ว

    Maybe the difference is in the base curve in darktable. Difference in color noise is probably by different demosaic algoritms used in this softwares. In darktable You can choose from different ones and it will maka a difference too.

  • @nightryder21
    @nightryder21 5 ปีที่แล้ว

    How about the the opposite? Can you over expose by pushing your ISO high and then bring it back to a correct exposure?

    • @pipari21
      @pipari21 5 ปีที่แล้ว

      Good question. I tried that at home and it seems that it is possible to bring back the high lights if you over expose with ISO. My correct exposure was with ISO 6400 and I took the same picture with ISO 800 and ISO 64000, so 3 stops under and over. They all look basically the same when the ISO 800 and ISO 64000 are brought back to correct exposure. I have Sony a7iii. So suppose when you go ISO 800 or beyond with a7iii, your ISO doesn't really matter unless you are already overexposed at ISO 800. ISO invariance starts at ISO 800 on the a7iii.

  • @bfbaril
    @bfbaril 5 ปีที่แล้ว

    If you guys plan on transcribing this video into an article or blog post, I'd love to run the same test for you (using your raw file) in ACDSee - I know it's not as popular as photoshop, LR, or Capture One, but it's gotta be pretty on par with Luminar. I'm very curious how my tool compares (though I don't expect anything vastly different)

  • @TheDirtyBirchTrails
    @TheDirtyBirchTrails 5 ปีที่แล้ว

    I've salvaged many photos like this over the years. From weddings to landscapes to moon shots. Mainly in the Nikon lineup as far back as the D7000 to the newer D7500

  • @SSD-rm7fk
    @SSD-rm7fk 5 ปีที่แล้ว

    whats about the dynamic range ? is the underexposed image better because using lower iso with more dynamic range ??

    • @TheTechnoPilot
      @TheTechnoPilot 5 ปีที่แล้ว +1

      Only depending on what part of your dynamic range you are trying to use, above or below middle gray.

  • @pov_driver
    @pov_driver 5 ปีที่แล้ว

    I had already done a comparison between LR and Capture One for the same experiment hoping that Capture One would be better in "reading" the RAW but it was pretty much the same eventually. I would agree that is better to shoot correctly in the first place. I have an older camera afterall but it did it quite well in this test. Anyway, what matters in getting out and shoot! ;)

  • @conradlabone1223
    @conradlabone1223 5 ปีที่แล้ว

    One thing I've seen from other videos and a small amount of my own testing is that the difference is even smaller if you are not doing this from base iso, eg 200-400 iso to start and then raising it.. What I'd like to know, if you could is to know the effect on dynamic range starting with high iso vs post raising exposure, and which would be better for getting the most out of night photography (astro).. Tia

    • @albaimagery5739
      @albaimagery5739 5 ปีที่แล้ว

      Don't know if this helps answer your question, but it's an interesting table for comparison purposes. Values don't quite match up to manufacturers' claims, but that doesn't negate the comparisons. photonstophotos.net/Charts/PDR.htm.

    • @karafuru7666
      @karafuru7666 5 ปีที่แล้ว

      Unfortunately, it varies by sensor. For example, the Sony A7III for has a known value of 640ISO, the Nikon D850 has a known value of 400ISO.

    • @conradlabone1223
      @conradlabone1223 5 ปีที่แล้ว

      Thanks, I appreciate the reply's

  • @AndyGarton
    @AndyGarton 5 ปีที่แล้ว

    What surprises me in all of this is no mention of using ISO as part of the exposure triangle, for creative control of your images. If you just lock ISO at native, you reduce your aperture and shutter speed options at the time of shooting.

  • @lucuslopez6866
    @lucuslopez6866 5 ปีที่แล้ว

    so the noise level at 100,000 iso will be the same as a 100 iso shot?

  • @stadtchronistjennersdorf6351
    @stadtchronistjennersdorf6351 5 ปีที่แล้ว

    As I already wrote under another youTuber - basicaly you got it right - every camera just has ONE (1) base iso. The only difference you see after pushing 3, 4 or even 5 stops is due to ON-SENSOR denoise, by the way - Canon have been the very first ones to use that, which of course is more powerful if you choose to use iso1600 compared to iso100. After seeing the difference between those images, 1600 vs 100, that is just caused by the lower use of one-chip denoise (even if shooting "RAW") as using iso100, being lower, and iso1600, being higher.
    ;-)

  • @sunesnigel
    @sunesnigel 5 ปีที่แล้ว +1

    Hahaha wow! It wasn't a complete war of time, you came to a conclusion. Gear work!

  • @lishlash3749
    @lishlash3749 5 ปีที่แล้ว

    What most photographers don't understand (because camera controls mislead them) is that RAW dynamic range STARTS at the point where the sensor saturates. All sensors deliver maximum output at this point, and as light intensity is decreased, the sensor's output decreases linearly (proportionally). As light intensity decreases into the shadow region, the sensor's output descends into the range where electronic noise becomes noticeable. The point where the sensor's output drops below the average noise level is (by definition) the dynamic range limit of the camera. The reason the camera's ISO setting has an imperceptible effect on its DR limit is because ISO boosts both the sensor output AND its inherent noise level by the same amount.
    Where the ISO setting does make a difference is in how the image is digitized by the camera. As the sensor output descends toward black, fewer and fewer bits are used to digitize its output level (each stop darker is digitized by half as many bits). At near-black levels of intensity, so few bits are used that color and saturation discrimination become very coarse. That is why you see an increase in chroma noise in the shadows when you boost exposure by several stops to compensate for an underexposed image. The cause is NOT that the sensor is contaminated with near-dark color noise, it's purely a digitization artifact caused by insufficient bit-depth. If you raise the ISO to properly expose the image, those near-black regions will be digitized with more bits, and that will improve color and saturation discrimination.
    The moral is that you should use higher ISO settings when you want to capture the highest quality of shadow detail. You should use lower ISO settings when you want to make sure that the brightest highlights will not be blown out.

  • @Goncalopb
    @Goncalopb 5 ปีที่แล้ว

    Only tested this on my a7III from ISO 100 to ISO 25600 but saw no difference when properly exposed in Lightroom from 1600 to 25600.
    I did see a difference in everything from 100 to 800, although it is supposed to be ISO invariant from and starting at 800.
    I shot at night and natural light, so there is room for error at that 800 ISO, but if it is the same in an uncontrolled environment it will be the same in a studio.
    The difference here is really in dynamic range, and that will be affected if you shoot at higher iso in camera but won’t be (won’t be or at least won’t be as much) if you push it in post.

  • @ihendrawijaya
    @ihendrawijaya 5 ปีที่แล้ว

    It does the same when overexpose?

  • @CascadeHush
    @CascadeHush 5 ปีที่แล้ว +1

    The take-away for me is don't be afraid to underexpose aggressively to preserve highlights. I usually underexpose 1/3 of a stop, but I may change that to 1 stop. Also, anybody who is adamant in their opition should test out their own gear and software and draw your own conclusions that work for you. I like the series, it taught me something and made me think.

    • @jasonbodden8816
      @jasonbodden8816 10 หลายเดือนก่อน

      Underexposing 1/3 or 1 stop is FAR from aggressive LOL.

  • @Cryect2
    @Cryect2 5 ปีที่แล้ว

    Results look good :) Note if you want to preserve the highlights more you should be boosting the ISO not just reducing it and underexposing the rest the exposure. Increasing ISO is shifting the gray point to give more space for highlights (hence why cameras often default higher ISO than base for flash to give you more room to help prevent blown highlights in your RAW images).

    • @youknowwho9247
      @youknowwho9247 5 ปีที่แล้ว

      What if I want to preserve highlights without adding extra noise off the bat so I have the most leeway to play with shadow boosting later?

    • @Cryect2
      @Cryect2 5 ปีที่แล้ว

      Properly use Expose to the Right and that will give you most shadow recovery but its hard to not verify you aren't clipping the highlights in camera when the previews/zebras/histograms are based off the JPG results instead of raw sensor data. Otherwise you are stuck getting a camera with more dynamic range. Overall just use ISO when it makes sense.

  • @Pspet
    @Pspet 10 หลายเดือนก่อน

    2 videos in a row missing Tony's point about ISO invariance after a certain threshold. Nice.

  • @MobiusCoin
    @MobiusCoin 5 ปีที่แล้ว

    That's definitely close enough for me. I was shooting an amateur Muay Thai event in a dark bar one time and if I had known I could do this to capture the action better, I definitely would've traded some noise for more crisp action shots.

  • @AlvaysClever68
    @AlvaysClever68 5 ปีที่แล้ว

    My A7II can save in both compressed and uncompressed RAW, if your comparisation for Nikon are based on compressed RAW, the should be some difference in the files.

  • @georgecharpentier6043
    @georgecharpentier6043 5 ปีที่แล้ว +2

    Thank you for this. I had already watched the Tony version, and this completes the picture. I agree with you that proper exposure is the best plan, and that sometimes entails compromises. Nobody in his or her right mind would deliberately underexpose a shot just to waste time in post.

  • @jaimeduncan6167
    @jaimeduncan6167 5 ปีที่แล้ว

    Do you have the D5 ? I believe it’s not ido invariant it has multiple step amplification.