reciprocity failure with Neopan 100 Acros

mdohoney

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• Feb 18, 2005

• #1

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

 

rbarker

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• Feb 18, 2005

• #2

Take a look at:

http://www.fujifilm.com/JSP/fuji/epartners/bin/NeopanAcros100.pdf

it says no adjustment is required for exposures up to 120 seconds, and +1/2 stop for exposures between 120 and 1000 seconds.

 

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mdohoney

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• Feb 19, 2005

• #3

Thank you!

 

dogzbum

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• Feb 25, 2005

• #4

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!!

 

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mdohoney

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• Feb 25, 2005

• #5

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