Filter Types - Sekonic SPECTROMASTER C-700 Series Operating Manual

9-2

Filter Types

When using camera LB/CC filters based on the recommended compensation
displayed in the meter (C-700 series), please note that camera lens filters block or
absorb light to produce their effect and thus the amount of light passing through
them for exposure will be reduced.
If your camera does not have a through the lens exposure system and you are using
a handheld exposure meter to determine camera settings, consult the table below to
find how much to increase the e posure to compensate for the light absorbed by the
lens filter.
When you use a lighting filter, e posure compensation is not necessary, because
the intensity of the light is already decreased.
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Kodak WRATTEN 2/LEE Filter [Camera Filter]
Amber Type
LB Index
Filter Number
-1
(MK )
+9
+18
+27
+35
+42
+52
+81
+112
+131
Magenta Type
CC index Filter Number
+1.0 CC025M
+2.0 CC05M
+4.0 CC10M
+8.0 CC20M
+12.0 CC30M
+16.0 CC40M
+20.0 CC50M
Exposure
Increase
Increment
(+EV)
1 /
81
3
1 /
81A
3
1 / 3
81B
1 /
81C
3
2 /
81D
3
2 / 3
81EF
1 /
85C
3
2 / 3
85
2 /
85B
3
Exposure
Increase
Increment
(+EV)
0
1 /
3
1 / 3
1 / 3
2 /
3
2 / 3
1
LB Index
Filter Number
-1
(MK )
-10
-21
-32
-45
-56
-81
-112
-131
Green Type
CC index Filter Number
-1.0
-2.0
-4.0
-8.0
-12.0
-16.0
-20.0
186
9. Appendix
Blue Type
Exposure
Increase
Increment
(+EV)
1 /
82
1 /
82A
2 / 3
82B
2 /
82C
2 /
80D
80C 1
1 2 / 3
80B
80A 2
Exposure
Increase
Increment
(+EV)
CC025G 0
1 /
CC05G
1 / 3
CC10G
1 / 3
CC20G
2 /
CC30G
2 / 3
CC40G
2 /
CC50G
3
3
3
3
3
3
3