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Thread: How to check if Photo developer did any changes to your prints?

  1. #1
    Member
    Join Date
    Mar 2002
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    Upper Bukit Timah
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    Default How to check if Photo developer did any changes to your prints?

    Hi,

    I heard that there is a way to check if the photo developer did any alterations to your prints. You can check by looking behind the photo. If I am not wrong, N N N N (or is it X X X X or some other alphabet) means that no alteration was done and what you see is basically what you took.

    Can someone confirm this? And what do other variations of the alphabets mean?

  2. #2
    Senior Member
    Join Date
    Feb 2002
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    Perth Australia
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    2,548

    Default

    The NNNN Codes represent the following

    Cyan
    Magenta
    Yellow
    Density

    The actual numbers represent the amount of operator adjustment, eg NN2N or NN-1N and are not indicative of anything else as the printing machine has already made a preliminary analysis of the negative before manual intervention. The machine based analysis is NOT printed.

    An un-official qualification in the pro-lab industry is that you must be using either a Bremson or Kodak video analyzer for proofing. In this case the prints wouldn't have the NNNN codes but a DRGB code.
    The Ang Moh from Hell
    Professional Photography - many are called, few are chosen!

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