Description: Compatiable lens :For all Canon EF ,EF-S lens. Compatiable camrea : For all Micor 4/3 camera ,Such as panasonic and Olympus. For Panasonic: GH5GK GH5LGK GF9KGK GF9XGK G85GK GF7XGK GF8 GX8 G7 GH4 GX7 GM LX For Olympus E-M1 mark II E-M1 E-M5 Mark II E-M5 E-M10 Mark II E-M10 E-M5 E-M10 mark II E-M10 E-P5 E-PL8 E-PL7 E-PL6 E-PL5 E-PM2 PEN-F. When the light photography or night photography, Can avoid around light entering the lens interference photography. Specification: Does not affect the UV mirror, Lens cover normal use. Bayonet easy to install, Can easily buckle. Material: Aluminum alloy Color: Black Size: Approx. 65*65*25mm / 2.48*2.48*1.38inch Package Includes: 1 Piece Lens Adapter Ring