【49mm ND & CPL Filter Set】 This 49mm camera lens filter set includes two neutral density filters (ND8/ND64), a CPL filter, and a filter bag. Featuring top level of light transmittance, the filters are well suited for filming under bright daylight conditions | 【Reduce Light & Reflection】The ND8/ND64 filters reduce the amount of light entering your camera sensor by 3 stops and 6 stops respectively, to reduce shutter speed for long exposure shots and motion blur, well suited for landscape photography, such as shooting running water. The CPL filter captures vibrant color and contrast and avoids unwanted reflections from water, or glass windows, ideal for filming the blue sky and white cloud | 【HD Optical Glass with Multiple Resistant Nano Coatings】 With high quality HD optical glass and 30 layers of nano coatings on the both side of the filters, the reflectivity can reach less than 0.1% to reduce flare and ghosting. Protect the filter from water, oil, dust, and scratches | 【Ultra Slim Aluminum Alloy Frame】 Made of CNC machined aluminum alloy, the ultra slim frame largely eliminates vignetting and dark corners when mounted on a wide angle lens. The durable filters are lightweight and won’t add noticeable weight when mounted on your camera lens | 【Choose the Right Filter Size】This series of ND8/ND64/CPL filters set comes in different sizes. The 49mm filters can only work with 49mm camera lens. Please make sure that your camera lens filter thread and the 49mm filter set match (confirm the "Φ49" symbol on your lens)