The Tiffen 4x4" Dark Blue 47B glass filter is a dark blue filter that lightens blue objects for greater detail. Do you want clearer water? Brighter skies? Discover the 47B filter. It should be noted that the light loss of nearly 3 stops imposed by this filter would almost certainly require the use of a tripod.


Features:

- Filters for black and white photography allow various filtering effects, including contrast control, skin tone enhancement, tonal corrections and more dramatic landscapes
- Although initially designed for use with black and white film, this filter can also be used as a creative tool in colour imaging


Specifications:

- Type: Blue
- Dimensions: 4x4" (100 x 100 x 4 mm)
- Grade: 47B
- Filter Factor: 6 (+2 2/3 stops)
- Effect: Enhances fog and haze
- Application: Used in dye transfer printing and for contrast effects (lightens blue tones)
- Construction: Glass