Condition: 100% brand new Item type: ND Filter Material: Aluminum alloy + optical glass Ring Color: red Weight: Approx. 85g Neutral density grade: 2-400 Filter Frame thickness: Approx. 1cm/0.4in Lens compression spring: screw-in Applicable caliber: the interface diameter is 82mm/3.2in camera lens Main function: weaken the light through the lens to reduce the exposure 1The neutral density can be adjusted from ND2 to ND400 to reduce the amount of colorless light reaching the film. 2When the focal length of the lens is in the ultra?wide?angle range and the aperture value is F2.8, if the filter is adjusted to a high density, there may be a more obvious "cross" spot or slight color shift. Ensures that the imaging is not disturbed, it is recommended to reduce the density value of the filter until the interference flare disappears, and you can shoot normally. 3Using this filter, you can get more DOF to control the aperture and shutter, bring more exposure methods and creation space for photography creation, and effectively prevent overexposure. 4ND2 reduces the exposure by 1 stop, ND4 reduces the exposure by 2 stops, and ND8 reduces the exposure by 3 stops. The number behind ND represents the ability of the ND mirror to block light. 5Suitable for dynamic screens, waterfalls, streams, waves, etc.1 x Filter