【10-Stop Light Reduction】 This ND1000 filter reduces the light entering your camera’s sensor by 10 stops and allows you to use slower shutter speeds to capture motion blur or wider apertures in bright lighting conditions. Smooth out water and clouds and make moving objects like people disappear 【HD Optical Glass】 Made of high-definition optical glass, the filter features a light transmittance of 0.1% and delivers crystal clear images while maintaining accurate colors. 【28 Multi-Resistant Nano-Coatings】 The filter has 28 layers of water, scratch and oil resistant nano-coatings that reduce lens flare and ghosting while extending the life of the filter. The ultra-slim design avoids vignetting when you take pictures 【Aviation aluminum alloy frame】0.13inch/3.3mm Ultra-Thin Frame.The slim and lightweight aluminum alloy frame minimizes vignetting when using wide-angle lenses. The anodized aluminum alloy frame with a matte black finish is durable and can eliminate unwanted reflections from the frame 【Notes】 This is a fixed neutral density filter, not a variable filter. The 77mm fixed ND filter can only be used on 77mm lenses. Please verify your lens filter size before purchasing (Look for the diameter symbol (“⌀”) followed by two numbers after it and “mm”)