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Thread: Use high ISO or adjust in post.

  1. #1

    Default Use high ISO or adjust in post.

    Not really sure if there was any questions posted like this before.
    Assuming if we're shooting candids of people in low light situation.

    1. Would you use high ISO for x shutter speed?

    or

    2. Use lower ISO at x shutter speed (Producing underexpose image) to be adjusted in post.

    Which would be a better option? Assuming the shots are on manual mode and underexposure is a consistent in option 2.
    5DMk2,400D,EOS3 50mm F1.4,28-75 F2.8,GRDIII 28mm F1.9
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  2. #2
    Moderator catchlights's Avatar
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    Default Re: Use high ISO or adjust in post.

    AFAIK, the noise level of High ISO is more acceptable then correcting underexposed images during the post.
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  3. #3

    Default Re: Use high ISO or adjust in post.

    Quote Originally Posted by blurry80 View Post
    Not really sure if there was any questions posted like this before.
    Assuming if we're shooting candids of people in low light situation.

    1. Would you use high ISO for x shutter speed?

    or

    2. Use lower ISO at x shutter speed (Producing underexpose image) to be adjusted in post.

    Which would be a better option? Assuming the shots are on manual mode and underexposure is a consistent in option 2.
    For Option 2, trying to recover details from underexposed images in PP will introduce a lot of noise esp in dark/shadow areas.

    Use Option 1, cameras now have nice clean high ISO.

  4. #4
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    Default Re: Use high ISO or adjust in post.

    i came across this question of yours in the past. i did a test. realise that using high iso is better than adjusting it in pp later on. pp gives more noise.

  5. #5
    Senior Member ovaltinemilo's Avatar
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    Default Re: Use high ISO or adjust in post.

    Quote Originally Posted by blurry80 View Post
    Not really sure if there was any questions posted like this before.
    Assuming if we're shooting candids of people in low light situation.

    1. Would you use high ISO for x shutter speed?

    or

    2. Use lower ISO at x shutter speed (Producing underexpose image) to be adjusted in post.

    Which would be a better option? Assuming the shots are on manual mode and underexposure is a consistent in option 2.
    1) would mostly likely beat (2) anytime...(2) is like a desperature measures...when you pp the underexp parts, noise would even be worse...
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  6. #6
    Moderator Octarine's Avatar
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    Default Re: Use high ISO or adjust in post.

    Something that is not (properly) captured in underexposed images cannot be recovered. Where shall the information come from? Noise is well recognized by many programs and current noise removal algorithms are really good.
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  7. #7

    Default Re: Use high ISO or adjust in post.

    Guess the answer is 3. shoot in high iso @ x shutter speed and reduce noise in post.
    Thanks everyone.
    5DMk2,400D,EOS3 50mm F1.4,28-75 F2.8,GRDIII 28mm F1.9
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  8. #8

    Default Re: Use high ISO or adjust in post.

    For me , getting a grap of a perfect moment lets some noisy to be negligible. Candid in low light condition , speed comes first.

  9. #9

    Default Re: Use high ISO or adjust in post.

    Will use high ISO for 1/60-100shutter speed ba.
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  10. #10
    Deregistered allenleonhart's Avatar
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    Default Re: Use high ISO or adjust in post.

    Quote Originally Posted by catchlights View Post
    AFAIK, the noise level of High ISO is more acceptable then correcting underexposed images during the post.
    i second this.

    high iso may mean a lot of noise. but the very least, there would be data of the image recorded. worst come to worst can just convert to black and white and it still looks good.

    on the other hand, underexposing may result in loss of details in shadow areas. may be slightly more crippling.

    thats just my own personal experience so far

  11. #11
    Senior Member Override2Zion's Avatar
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    Default Re: Use high ISO or adjust in post.

    Underexposure = Loss of details in the shadows
    High ISO = Details with lots of random specks all over
    You can't bring back lost details in an underexposed shot but you could aways use Noise Ninja, Nik Define 2, Noiseware Professional and equivalent plugins to remove noise on a image shot with high ISO.
    Nikon D200/D700/D800 User :)
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  12. #12
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    Default Re: Use high ISO or adjust in post.

    I will choose option 1, don't want my object look blurred because of low shutter speed,unless it's intentionally.

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