RE: FILTER FACTOR FOR #52
Thanks to all on Alt Photo who replied!
From: Liam Lawless [mailto:email@example.com]
Sent: Wednesday, July 09, 2008 12:01 AM
Subject: RE: FILTER FACTOR FOR #52
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
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.
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