how to expose acros in the moonlight...

chris77 · May 21, 2016

topic says it all, maybe somebody has experience and is willing to share.
can someone give an idea of how long to expose acros (for condenser) under full moon light.
i know it all depends - but i am just looking for a rough figure as a starting point.

thanks, very much appreciated..

bvy · May 21, 2016

The "rule" seems to be 18 more stops than Sunny 16. That's your baseline. Then you need to consider reciprocity failure -- something Acros is known to handle better than other films, but even it has its limitations.

Sirius Glass · May 21, 2016

I have use the Jiffy calculator with great success.

http://f-sunny.com/night-exposures-in-a-jiffy/
http://www.veronaschools.org/cms/lib02/NJ01001379/Centricity/Domain/53/Jiffy Calc Page 1.pdf

chris77 · May 21, 2016

interesting.. thank you both!

pdeeh · May 21, 2016

well, if you know the luminance of the moon , you can work out exactly what your exposure should be, a la The Blessed Ansel*

*p.127 of The Negative in the 1984 NYGS edition

how to expose acros in the moonlight...

chris77

bvy

Sirius Glass

chris77

pdeeh

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