The B and W 77mm XS-Pro 802 ND Filter is an essential accessory for nature photography. This filter has a slim brass mount for attaching it onto mirrorless systems and DSLR cameras. The filter allows you to work with a slow shutter speed and wide aperture to get the required depth of field. The filter has a 3-layer multicoating applied through a thin-film technology. In the multi-coating, the outer layer resists dust and moisture, and the inner layer reduces reflections. A 77mm accessory thread is provided at the front to enable the use of lens covers or hoods.