Schneider-Kreuznach enhances its range of B+W square filters with extremely strong ND filters for long exposures
Schneider-Kreuznach is expanding its range of B+W square filters for 100 x 100 x 2 mm filter holder systems to include a version with exceptionally high density for particularly long exposures. The filter is made of finely ground and polished special glass. With high-resolution camera systems, the full contrast and sharpness is also maintained.
The filter glass is carefully specified so that the filters not only fit in their own B+W filter holder, but also in all models available on the market designed for filter channels with a width of 100 mm and a glass thickness of 2 mm.
The high ND density is achieved with a special coating process. Color reproduction is optimized over the entire visible light spectrum, making subsequent image processing simpler and faster for the photographer. Thanks to their high-grade, anti-reflex and hardened final coating, which is not only scratch-resistant, but also dirt and water repellent, these square filters can be cleaned very efficiently and quickly. The optical density ND 4.5 is equivalent to +15 f-stops. In practice, this means that the exposure time at 1/60s without the filter increases to 8 minutes with the filter.