SmallRig Attachable VND Filter Kit ND2-ND32 (1-5 Stop) 52mm 4215contains two CPLs, stacked and rotated to reduce the amount of light, thereby balancing the exposure time. Its inner polarizer magnetically mounts to the SmallRig filter adapterringvia a bottom locating ring, whereas the outer polarizer can be rotated via an aluminum alloy ring at 1-5 stop variations to reduce the amount of light.Made of German Schott B270i HD glass, the filter features waterproof, stain-resistant, mildewproof, and scratch-resistant AR coatings, with less color cast, as well as a CNC-machined ultra-thin frame. Large-diameter filter prevents vignetting even in shooting using an ultra-wide angle lens. It can be magnetically and securely attached to SmallRig magnetic filter ring adapter via the bottom anti-deflection design and rotated between a range of hard stops at ND2 & ND32 for precise control of shooting. Magnetically and quickly secureHD glasses from GermanyWaterproof, stain-resistant, mildewproof and scratch-resistant AR coatingsLarge-diameter and ultra-thin filter; no vignettingNo cross pattern in the pictureMagnetically secures SmallRig 52mm magnetic filter adapter ring, safe and stableHard stops at ND2 & ND32 for precise control of shootingVND filter exposure time Unit (second): shutter speedND2ND4ND8ND16ND32BeforeAfterBeforeAfterBeforeAfterBeforeAfterBeforeAfter1/1000s1/500s1/1000s1/250s1/1000s1/125s1/1000s1/60s1/1000s1/30s1/500s1/250s1/500s1/125s1/500s1/60s1/500s1/30s1/500s1/15s1/250s1/125s1/250s1/60s1/250s1/30s1/250s1/15s1/250s1/8s1/125s1/60s1/125s1/30s1/125s1/15s1/125s1/8s1/125s1/4s1/60s1/30s1/60s1/15s1/60s1/8s1/60s1/4s1/60s1/2s1/30s1/15s1/30s1/8s1/30s1/4s1/30s1/2s1/30s1s1/15s1/8s1/15s1/4s1/15s1/2s1/15s1s1/15s2s1/8s1/4s1/8s1/2s1/8s1s1/8s2s1/8s4s1/4s1/2s1/4s1s1/4s2s1/4s4s1/4s8s1/2s1s1/2s2s1/2s4s1/2s8s1/2s16s1s2s1s4s1s8s1s16s1s32sPlease note that exposure time varies depending on lighting conditions, light intensity measuring, and ISO settings.Note:1. For the strongest magnetic force, please rotate the bottom locating ring to ensure the filter and the filter ring adapter fit together.2. Not recommended for use in furious motion or in strong winds.3. Keep away from strong acids.Work With Φ52mm magnetic filter adapter ringVND Filter ND2-ND32 x 1Clean Cloth x 1Storage Case x 1Product Dimensions: Φ67mm (glass), 6mm thickPackage Dimensions: 93 x 93 x 22mmProduct Weight: 33 ± 1gPackage Weight: 80 ± 5gBase Diameter: 52mmMaterial(s): Glass, Aluminum Alloy