RE: FILTER FACTOR FOR #52
Thanks to all on Alt Photo who replied! CHEERS! BOB -----Original Message----- From: Liam Lawless [mailto:lawless@bulldoghome.com] Sent: Wednesday, July 09, 2008 12:01 AM To: alt-photo-process-l@usask.ca Subject: RE: FILTER FACTOR FOR #52 Bob, When I forget the factors of the many filters I have kicking around here, I simply put the offending piece of glass or resin in front of the window of my light meter and take a reading... then another without a filter. Works pretty good! Wikipedia has an entry for 'Wratten Number' that lists all the commonly available Wrattens, and 52 ain't there. Neither is it in the 'Filter Substitution Table' in Wall & Jordan, where they have Wratten 11 and 23A as light green (and 13 as medium green). No factors, though. Liam __________ NOD32 3254 (20080709) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com
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