The B+W 39mm #22 Red-Orange (041) Filter is a basic contrast filter, primarily for use with black and white film. This red-orange filter noticeably darkens skies, helps to cut through haze, and improves overall contrast. When compared to the dark yellow #15 filter, the #22 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.
B+W filters are constructed from high quality Schott glass for increased optical clarity and color fidelity. They feature a brass filter ring for durability as well as jamming prevention.
| Type | Red-orange |
| Size | 39 mm |
| Grade | #22 (041) |
| Filter Factor | 4 (2 stops) |
| Effect | Noticeably darkens skies, increase in overall contrast |
| Construction | Schott glass |
| Front Filter Thread Size | 39 mm |
| Front Lens Cap Size | 39 mm |