The B and W 77mm XS-Pro 810 ND Filter proves its usefulness when shooting with a wide aperture and a slow shutter speed. This filter easily attaches to mirrorless cameras and DSLRs by means of the slim brass mount. A filter density of 3 entails exposure reduction by 10 stops. This lens comes with multi-layer MRC-nano coating applied using the thin-film technology. The anti-reflective inner layer improves image contrast, and the outer layer repels dirt and moisture. Lens covers or hoods having a 77mm diameter can be fitted onto the front accessory thread.