Color Filters 2

Color Filter Exposure Factors

The following table describes filter exposure adjustment factors for various color filters which can be used for spectral selectivity in conventional photography.

Wratten Number Color Name Daylight Factor Daylight Stops Tungsten Factor Tungsten Stops

70 Deep Red 20x 4.25 10x 3.25

29 Deep Red 20x 4.25 10x 3.25

25 Red 8x 3 5x 2.25

23A Light Red 6x 2.5 3x 1.5

21 Orange 4x 2 2x 1

15 Deep Yellow 1.5x 0.7 1.5x 0.7

12 Deep Yellow 2x 1 1.5x 0.5

8 Yellow 2x 1 1.5x 0.5

11 Light Yellow Green 4x 2 4x 2

58 Green 8x 3 8x 3

61 Deep Green 12x 3.5 12x 3.5

44 Cyan 8x 3 8x 3

47 Blue 6x 2.5 12x 3.5

47B Deep Blue 8x 3 16x 4

32 Magenta 8x 3 8x 3

33 Magenta 24x 4.5 12x 3.5

34A Violet 8x 3 16x 4

Wratten Number	Name	Daylight Factor	Daylight Stops	Tungsten Factor	Tungsten Stops
70	Deep Red	20x	4.25	10x	3.25
29	Deep Red	20x	4.25	10x	3.25
25	Red	8x	3	5x	2.25
23A	Light Red	6x	2.5	3x	1.5
21	Orange	4x	2	2x	1
15	Deep Yellow	1.5x	0.7	1.5x	0.7
12	Deep Yellow	2x	1	1.5x	0.5
8	Yellow	2x	1	1.5x	0.5
11	Light Yellow Green	4x	2	4x	2
58	Green	8x	3	8x	3
61	Deep Green	12x	3.5	12x	3.5
44	Cyan	8x	3	8x	3
47	Blue	6x	2.5	12x	3.5
47B	Deep Blue	8x	3	16x	4
32	Magenta	8x	3	8x	3
33	Magenta	24x	4.5	12x	3.5
34A	Violet	8x	3	16x	4