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Thread: Qns about iso film setting

  1. #1

    Question Qns about iso film setting

    Say if i manual set iso 125 for a iso100 film/slide, what will be affected ? e.g. lower/higher saturation etc

    Thanks

  2. #2
    Senior Member
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    Default Re: Qns about iso film setting

    Originally posted by Keito
    Say if i manual set iso 125 for a iso100 film/slide, what will be affected ? e.g. lower/higher saturation etc

    Thanks
    If you shoot an ISO 100 slide at EI of 125, you are effectively underrexposing 1/3 stop. For slides, this usually result in enhanced colour saturation. For negatives, you won't get much of an effect as the lab will correct for this slight underexposure.

    For negs, better to slightly overexpose. Or to make it simpler:

    1. For slides, expose for highlights.
    2. For negs, expose for shadows.

    Regards
    CK

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