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  1. #1
    Jeff Bannow's Avatar
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    New Portra 400 - Reciprocity charts & push/pull?

    Anyone have a chart or information on reciprocity corrections for the new Kodak Portra 400?

    Also, how about pushing to 800 or 1600 ISO? Anyone tested this yet?
    - Jeff (& sometimes Eva, too) - http://www.jeffbannow.com

  2. #2

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    This may be of interest (I understand Kodak has nothing available):

    http://figitalrevolution.com/2011/01...iprocity-test/

    Rick

  3. #3
    Athiril's Avatar
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    I've pushed to 1600, and shot at 1250-6400.

    1250-1600 is best (obviously) @ 1600, actually it's excellent.

    Other's have pushed to 3200 with excellent results. While it's perfect at 400, I would recommend overexposing a third to two thirds of a stop when pushing, ie: shoot at 1000 pr 1250 for a 1600 push, or 2000 or 2500 for a 3200 push, it really helps with the margin of error with even great metering.


    OCAU Melb Photowalk Week 2 #6 by athiril, on Flickr

  4. #4
    wildbill's Avatar
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    I've wondered why film manufacturers don't publish the reciprocity characteristics out to minutes. They spend all this money configuring a "new" film and leave things like this for speculation.
    www.vinnywalsh.com

    I know what I want but I just don't know how to go about gettin' it.-Hendrix

  5. #5

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    As a starting point, use whatever you used for Portra 400NC.

    This might be of interest:
    http://nightflyphotography.blogspot....400-color.html

  6. #6
    Jeff Bannow's Avatar
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    Thanks everyone for the great info.
    - Jeff (& sometimes Eva, too) - http://www.jeffbannow.com

  7. #7
    Tony-S's Avatar
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    Quote Originally Posted by Athiril View Post
    I've pushed to 1600, and shot at 1250-6400.
    When you have the film developed, what time do you use for the developer when shooting at 1600? I assume you keep it at 102F?

  8. #8
    Athiril's Avatar
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    Same temp. 4 minutes 15 seconds.

  9. #9
    Tony-S's Avatar
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    All right - thanks!



 

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