YONGNUO YN42.5mm F1.7M II M4/3 42.5mm Fixed Focus Camera Lens F1.7 Large Aperture Multi-coated 8 Groups 9 Blades High-Quality Focus Motor Auto Focus Replacement for Panasonic G100 GH5 G9 G95 G85 GX9 GX85 GF-10 GF-9 GF-8 Olympus E-M5 Mark Ⅱ E-M10 Mark Ⅲ E-M10 Ⅳ E-PL9 E-PL10 PEN-F