I recently purchased a 72mm SA XL lens and center filter. How much exposure comp ensation do I use with this filter? Also is there a scale or formula to use to c alculate long exposuresto adjust for reciprocity failure? Thanks all, Chet
I recently purchased a 72mm SA XL lens and center filter. How much exposure comp ensation do I use with this filter? Also is there a scale or formula to use to c alculate long exposuresto adjust for reciprocity failure? Thanks all, Chet
Chet, try starting with either 1.5 or 2 stops of compensation. Polaroid will tel l you close enough for you to make a couple of further test exposures, to truly nail it down.
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