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  1. #1
    xaheadx's Avatar
    Join Date
    Jan 2008
    Location
    Liverpool (Home), Southampton (Uni)
    Shooter
    8x10 Format
    Posts
    2

    Portra 160 + 400 NC reciprocity

    Hi Guys,

    Just wondering if anybody on the board has values for reciprocity for Portra 160/400 NC.

    I'm shooting on 10x8 and don't really want to go through a series of tests to determine some values!

    Maybe somebody has experience of the film/done some testing?
    Cheers
    Dave

  2. #2

    Join Date
    Aug 2005
    Location
    Los Alamos, NM
    Shooter
    Multi Format
    Posts
    2,044
    See http://www.kodak.com/global/en/profe...40/e4040US.pdf

    Kodak says no correction is needed for exposures from 1 second to 1/10000 second. My experience is that the range is even broader than that on the long exposure side. I don't have any exact data, but it seems to handle a lot like TMY.



 

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