Meike 35mm F1.7 Manual Focus Prime Lens for Micro 4/3 MFT M4/3 Olympus and Panasonic Digital Mirrorless Cameras Lens structure:5 groups 6 elements Compatible with Panasonic G1 G2 G3 G5 G6 G7 GF1 GF2 GF3 GF5 GF6 GM1 GM5 GM10 GX1 GX7 GX8 GH1 GH2 GH3 GH4, Olympus epm1 epm2 E-PL1 E-PL2 E-PL3 E-PL5 E-PL6 E-PL7 E-M1 E-M5 E-M10. With a wide aperture fo f/1.7, the lens can be usable indoors, at nighttime or dark environment Nano technology multi-layer coating, which can effectively reduce flaring, vignetting and ghosting Aperture range: f1.7-f22, mininum focus distance: 0.3m