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The Hitech 6 x 6" #21 Orange Filter is a basic contrast filter, primarily for use with black and white film. This orange filter noticeably darkens skies, helps to cut through haze, and improves overall contrast. When compared to the orange #16 filter, the #21 creates an even greater separation between clouds and sky and further lightens yellows and reds within the scene.
There is a 4x filter factor with this filter, requiring an increase of 2 stops for normal exposure. This filter measures 6 x 6" / 152.4 x 152.4mm and is constructed from specially dyed CR-39 resin.
Orange contrast filter for black and white film noticeably darkens skies, cuts through haze, and gives greater contrast overall.
Provides even greater separation between clouds and sky and further lightens yellows and reds within the scene.
Table of Contents
6 x 6" / 152.4 x 152.4 mm
4 (2 stops)
Noticeably darkens skies, increase in overall contrast
Landscapes and general black and white photography