The B and W 67mm XS-Pro 803 ND Filter makes it easy for you to control the depth of field when using a slow shutter speed and wide aperture. This filter can be fixed to mirrorless cameras and DSLRs via its slim brass mount. The filter density of 0.9 cuts-down the exposure by 3 stops. A thin-film technology is used for applying three different coatings to the filter. The inner anti-reflective layer reduces glare to improve contrast while a beading effect is provided by the outer layer to resist dust and moisture. You can use a lens cover or hood on the filter's front accessory thread.