B&W Filter Factors using Wratten #'s

Wratten Number

Color

Name

Daylight Factor

Daylight Stops

Tungsten Factor

Tunsten 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