Variable ND Filter Neewer Variable ND2–32 Filter can reduce the light transmission from 1 to 5 stops, slow down the shutter speed for a longer exposure, and help you shoot moving subjects with dynamic motion blur effects on rainy, cloudy, or sunny days Multiple Coatings The optical glass is protected with a multi layer coating for optimal performance in variable conditions. The resistant, multi-layer coating is water-repellent, oleophobic, scratch-resistant, and low-reflection Slim Metal Frame Ultra-slim aluminum alloy frame with an anti-glare black matte finish to prevent a vignette effect on wide-angle lenses. Straight knurls ensure smooth rotation between ND2 (min) and ND32 (max) No Black X-Pattern Neutral density adjustments can effectively eliminate the black x-pattern on your lens and allow you to capture compatible with sharp and clear photographs Wide Compatibility Compatible with any lens with a 77mm filter size. The filter size is marked on the front or side of your lens, next to a “⌀” (diameter) symbol