This Red Filter is ideal for strong contrast improvement since it absorbs green and blue completely and enhances red. In addition to contrast control, red filters enhance skin tones, tonal corrections and are effective for more dramatic landscapes.
This filter is glass and measures 100 x 125 mm (4x5") x 4 mm thick.
Clouds are dramatically improved almost to the mood of a thunderstorm; Darkens blue sky creating dramatic contrast between sky and clouds
It is more effective in cutting through haze, and moonlight effects are easily accomplished; Creates greater contrast between foliage and flowers
It is also suited for infrared photography
Tiffen 45R25 Specs
4x5" (100 x 125 mm)
3 (+2 stops)
Absorbs green and blue completely and enhances red
Create dramatic sky effects, emphasizing cloud contrast for landscapes; Simulate a moonlit scene at midday with slight underexposure; Use with infrared film to yield extreme contrast with skies, turn foliage white and cut through fog and haze