New Portra 400 - Reciprocity charts & push/pull?

Discussion in 'Color: Film, Paper, and Chemistry' started by Jeff Bannow, Mar 5, 2011.

  1. Jeff Bannow

    Jeff Bannow Member

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    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?
     
  2. SWphoto

    SWphoto Member

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  3. Athiril

    Athiril Subscriber

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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.

    [​IMG]
    OCAU Melb Photowalk Week 2 #6 by athiril, on Flickr
     
  4. wildbill

    wildbill Member

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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.
     
  5. Tim Gray

    Tim Gray Member

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  6. Jeff Bannow

    Jeff Bannow Member

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    Thanks everyone for the great info.
     
  7. Tony-S

    Tony-S Member

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    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. Athiril

    Athiril Subscriber

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    Same temp. 4 minutes 15 seconds.
     
  9. Tony-S

    Tony-S Member

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    All right - thanks!