Tiffen 3x4" Orange #21 Glass Filter for Black & White Film

This Deep Orange filter darkens blue, violet, green and yellow-green.

This filter is glass and measures 75 x 100 mm (3x4") x 4 mm thick.

Particularly useful for all landscape and architectural photography (on black and white film) requiring vivid contours

Sky will be distinctly toned with the clouds clearly contrasted against it