Atelier Louis
Pinhole design calculator
By Peter van der Werf
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Focal distance
mm
(distance between pinhole and the film)
Low light correction
stops
(trial and error value. Use this option to correct the effect of low light conditions on the film emulsion -reciprocity failure-. One stop is a factor of two change in light intensity)
Exposure time calculations
Simple
f/16 chart
Stops