Variable ND2-ND32 camera lens filter: This variable 82 mm camera lens filter offers 5 aperture levels of exposure brightness, from ND2, ND4, ND8, ND16 to ND32 (the numbers indicate how much light enters the lens in fractions). Use this filter for better control of exposure and shutter speed when photographing rivers, waterfalls, light trails and much more Magnetic Stackable ND32 Filter: Includes a magnetic ND32 filter for brighter sunlight, stackable with the VND2-32 to extend light reduction from 6 to 9 aperture levels. Ideal for precise light control in variable lighting, especially for video recording. Note: the magnetic ND32 filter cannot be used alone; it needs to be stacked with other filters. Please also remove magnetic ND32 filter if you want to attach lens cap High-quality optical performance: the high-resolution optical glass and true colours film ensure accurate colour reproduction without yellow tint. The innovative design with two stackable filters effectively prevents the usual "X" cross shadowing at high ND values and thus ensures image quality. Note: due to differences in lens design and focal length, please turn the lens back in case vignetting occurs Multi-layer nano coating: the surface of the lens filter is coated with 30 layers of nano coatings to reduce glare and reflections while protecting against dust, oil, fingerprints and scratches, extend the life of the filter and maintain high image quality for a long time Universal 82 mm compatibility: compatible with all lenses with an 82 mm thread. Please confirm your lens thread size before purchasing. The thread size is indicated on the front or side of your lens next to a "F" symbol (diameter)