1、Wide Compatibility: Lens mount adapter ring enables manual SLR lenses, for F mount lenses to be compatible with M4/3 series camera systems, including for G10 G11 G12, for E P1 E P2 E P3, etc. 2、Aluminum Alloy Material: Lens mount adapter is made of premium aluminum alloy with anodic oxidation process, exquisite workmanship, sturdy and abrasion resistant, long service life. 3、Precise Hole Position: This camera lens mount adapter has precise sizes, the bayonet fits the camera and lens perfectly, tightly combined, easy to install and disassemble smoothly. 4、Rich Functions: The lens converter ring supports full manual control, MF, manual exposure, aperture priority, matte paint. Provide professional adapter for professional photography enthusiasts. 5、Compact And Portable: This camera lens mount adapter has a compact and lightweight design, which can be easily put into the camera bag, convenient to use anytime and anywhere.