The B+W 58mm Redhancer Filter (491) is a warming filter constructed from didymium glass. This glass construction permits specific light transmission characteristics that enhance reddish tones within the image. This extended red-orange sensitivity is especially useful for nature and landscape photography, especially during the autumnal season. This filter is even more effective when paired with a polarizer filter, which helps to control blues and cool greys and subsequently increase the saturation of red, orange, and brown colors.
This filter has a single anti-reflective coating, which helps to improve light transmission to over 98% while preventing internal reflections and ghosting. Additionally, it features a brass filter ring for increased durability as well as jamming prevention.