【Square GND8 Filter】Unlike traditional circular camera lens filters designed for particular lens thread sizes, this square GND filter can fit on most camera lenses, well suited for professional photographers owned several lenses. Simply slide the 100x150mm GND filter into a filter holder (not included) to achieve balanced overall exposure | 【Balanced Exposure with 3 Stops】 GND8(3 stops) filter, Graduated Neutral Density filter, is designed to allow part of light to evenly pass through and darken part of the image to achieve more balanced overall exposure across the image. By lowering the contrast between highlight parts and shadow areas, it allows you to take cinematic sky shots with balanced exposure between the sky and the ground on the image | 【HD Optical Glass Build】Made of HD optical glass, this well polished filter delivers high clarity pictures without compromising image quality. The square filter design eliminates vignetting issues common to circular filters. No color cast | 【Multi Nano Coating Protection】The multiple layers of Nano coatings on both sides protect the filter against scratches, water, oil, dust, and fingerprint. The anti reflective coatings also eliminate reflections from the filter and the ground. Use the included cleaning wipes to clean the filter with ease | 【Widely Applicable】With 100mmx150mm filter size and compatible with Cokin Z pro filter holder and NEEWER filter holder (not included), the NEEWER GND8 square filter can be widely applied to landscape and portrait photography for balanced overall exposure without losing image sharpness