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  1. #1

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    reciprocity failure with Neopan 100 Acros

    I want to use Fujifilm Neopan 100 Acros with long pinhole exposures. The online calculator I use doesn't have data for this film. Where can I find information? My pinhole is f200.
    Thanks

  2. #2
    rbarker's Avatar
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    Take a look at:

    http://www.fujifilm.com/JSP/fuji/epa...anAcros100.pdf

    it says no adjustment is required for exposures up to 120 seconds, and +1/2 stop for exposures between 120 and 1000 seconds.
    [COLOR=SlateGray]"You can't depend on your eyes if your imagination is out of focus." -Mark Twain[/COLOR]

    Ralph Barker
    Rio Rancho, NM

  3. #3

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    Thank you!

  4. #4
    dogzbum's Avatar
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    Can I also suggest checking out the FREE PinholeDesigner tool?
    http://www.pinhole.cz/en/pinholedesigner/
    This calculates reciprocity for a range of films.
    For 100ACROS I used this tool to output times without adjusting for film then doubled the exposuretimes for metered times 120sec or more!!

  5. #5

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    Thanks again! It's a great tool. I'll try what you suggest. I have so much to learn!



 

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