Model Number: TS-ND Brand Name: Evertop Key Specifications/Special Features: TS-ND-A adjustable fader neutral density ND filter ND2-400, variable fader ND filter for photographyDescriptions:1. ND filter (neutral density) reduce the amount of light reaching the film without affecting the color2. Can be used to enable slower shutter speeds3. Also can be used to better separate subjects from the background by allowing wider apertures, effectively decreasing depth of field Product nameVariable fader neutral density ND filter Materialaluminium Aluminium ring and optical glass Sizes 37, 43, 46, 49, 52, 55, 58, 62, 67, 72, 77, 82mm Step Adjust from ND2 to ND 400 freely Packing Plastic box