Filter Factor Compensation
Posted: Sun Jan 21, 2007 8:29 pm
Filter Approximate Exposure Increase Required
(in Stops)
80A 2
80B 1 2/3
80C 1
80D 1/3
82C 2/3
82B 2/3
82A 1/3
82 1/3
85C 1/3
85B 2/3
85 2/3
85N3 1 2/3
85N6 2 2/3
85N9 3 2/3
81 1/3
81A 1/3
81B 1/3
81C 1/3
81D 2/3
81EF 2/3
ND3 1
ND6 2
ND9 3
ND1.2 4
Yellow 3 2/3
Yellow 8 1
Yellow 12 1
Yellow 15 1 2/3
Orange 21 1 2/3
Red 23A 2 1/3
Red 25 3
Red 29 4 2/3
Green 11 1
Green 56 2
Green 58 2 2/3
Blue 47 2 1/3
NOTE: Take these exposure compensation values as a guide only. Verify these values
by shooting tests or by using a light meter
(in Stops)
80A 2
80B 1 2/3
80C 1
80D 1/3
82C 2/3
82B 2/3
82A 1/3
82 1/3
85C 1/3
85B 2/3
85 2/3
85N3 1 2/3
85N6 2 2/3
85N9 3 2/3
81 1/3
81A 1/3
81B 1/3
81C 1/3
81D 2/3
81EF 2/3
ND3 1
ND6 2
ND9 3
ND1.2 4
Yellow 3 2/3
Yellow 8 1
Yellow 12 1
Yellow 15 1 2/3
Orange 21 1 2/3
Red 23A 2 1/3
Red 25 3
Red 29 4 2/3
Green 11 1
Green 56 2
Green 58 2 2/3
Blue 47 2 1/3
NOTE: Take these exposure compensation values as a guide only. Verify these values
by shooting tests or by using a light meter