Description: All-in-one variable neutral density fader filter that adjusts the amount of light reduction with just the twist of your wrist Neutral Density (ND) filters can reduce the intensity of light without appreciably changing its color Application： Classic ND filters have different reduction numbers and transmittance thus generated can be applied for different shooting conditions, Suitable for dynamic screen,waterfalls,streams,waves,etc. Feature: 1. Neutral density can be adjusted from ND2 to ND400.It is easy to creat different neutral density by rotating the ring fron 2-8 stopsl. 2. Apply slow shutter speed under strong sunlight exposure. 3. Large aperture is available to creat depth of field easily. 4. Index marks on the edge of filter for exace adjustment. Specification: Ring Color: Red Rotating: Yes Neutral Density Grade: 2 - 400 Size: Back(To lens) diameter Frame thickness: 1cm Frame material: aluminum alloy Glass material: optical glass Package Includes: 1 x fader filter