The B and W 43mm XS-Pro 803 ND Filter is made for work with mirrorless cameras and DSLRs. It brings a reduction in exposure by 3 stops thanks to the filter density of 0.9. The filter supports the use of a slow shutter speed and wide aperture opening in bright conditions to get control over the depth of field. This filter has an MRC-nano coating applied through a thin-film technology process. The outer layer of multi-coating protects the lens from dust and moisture while the inner layer offers improved image saturation by reducing reflections. A 43mm accessory thread is provided at the front to attach a lens cover or hood.