Specification Brand : Generic Color : Other Label : mc-toolparts Manufacturer : mc-toolparts MaterialType : Other ProductGroup : Home Improvement ProductTypeName : HOME_LIGHTING_ACCESSORY Publisher : mc-toolparts Size : 52 mm SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31GPXZkn7KL._SL75_.jpg SmallImage_Width : 75 Studio : mc-toolparts Title : Tool parts for Machine 501nm 95% Pass Narrow Band Fjlter Glass With 77mm Thread Ring for Camera Astronomie Astrophotography - ( Spec: 52mm )