exposure allowance for center filtergreenspun.com : LUSENET : Large format photography : One Thread
I recently purchased a 72mm SA XL lens and center filter. How much exposure compensation do I use with this filter? Also is there a scale or formula to use to calculate long exposuresto adjust for reciprocity failure? Thanks all, Chet
-- Chet Wright (firstname.lastname@example.org), February 01, 1999
Chet, try starting with either 1.5 or 2 stops of compensation. Polaroid will tell you close enough for you to make a couple of further test exposures, to truly nail it down.
-- Ellis Vener (email@example.com), February 01, 1999.