The B and W 55mm XS-Pro 806 ND Filter is specially made for providing control over the depth of field when shooting outdoors. It can be attached to mirrorless cameras and DSLRs with its slim brass mount. The filter makes you use a slow shutter speed and a wide aperture even in daylight. Its filter density of 1.8 brings down the exposure by 6 stops. Three different coatings are applied to the filter via a thin-film technology, in which the inner layer lowers reflections, and the outer layer resists dust and moisture. You can attach a lens cover or hood to the front accessory thread.