Features[Compatibility] Designed for 4/3 mount lens to M4/3 mount lens cameras, replacement for Olympus E-P1, E-P2, E-PL1, E-PL2, Panasonic G1, G2, G10, GF1 , GF2, GF3, etc.[Metal Electronic Con_tacts & Auto Focus Function] Making focusing more smooth and fast, and the picture clearer, especially for macro photography.[Manual Aperture Control] Convenient for shooting in bright or low light environment, flexible to adjust light transmittance, achieving clear picture of higher quality.[1/4 Inch Screw Hole Interface] Can be easily mounted to a tripod, freeing your hands, making your photography work less laborious.[Easy to Install] With a red dot on the adapter ring, convenient for installation, easy and quick to use; made from premium material, sturdy and durable for use.SpecificationsBrand: FOTGAModel: OEM4/3(AF)Color: BlackMaterial: Metal & plasticProduct Size: 6.6 * 6.6 * 2.5cm/ 2.5 * 2.5 * 0.98inchProduct Weight: 58g/ 2.04ozPackage Size: 7.2 * 7.2 * 5.5cm/ 2.8 * 2.8 * 2.1inchPackage Weight: 75g/ 2.64ozPackage List1 * Adapter Ring2 * Cap