NiSi 82mm True Color ND-VARIO Pro Nano 1-5 Stops Variable ND FilterThe NiSi True Color ND VARIO Pro Nano 1 5 Stops Variable ND is designed to mount onto lenses with 82mm front filter threads and provides an exposure reduction of 1 to 5 stops. The 0. 3 to 1. 5 density creates a darkening of the entire image, allowing wider apertures or slower shutter speeds than usually possible. The degree of density is easily controlled by rotating the front filter ring with or without the included silver lever, helping you