1、Compatible Models: Provide professional lens mount adapter, suitable for OM mount lens, compatible with for E620 E520 E450 E420 4/3 cameras, 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 lens mount adapter has precise sizes, the bayonet fits the camera and lens perfectly, tightly combined, easy to install and disassemble smoothly. 4、Rich Features: Support full manual control, manual focus, manual exposure, aperture priority, matte paint, can focus at infinity, suitable for professional photographers. 5、Compact and Portable: This lens mount adapter is portable and convenient to carry around. It takes up minimal space, fitting comfortably in your camera bag or pocket. Item Type: Lens Mount Adapter Ring Product Material: Aluminum Alloy Applicable Lens: for OM Lens Applicable Cameras: for 4/3 Cameras (for E620 E520 E450 E420) 1 x Lens Mount Adapter Ring