View Full Version : exposure allowance for center filter

Chet Wright
1-Feb-1999, 11:21
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

Ellis Vener
1-Feb-1999, 14:53
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.