Feature: 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. Specification: 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). Package List: 1 x Lens Mount Adapter Ring Note: When using the adapter ring for the first time, turn on the “No Lens Release Shutter” option in the camera body menu, otherwise the adapter lens will not be recognized and manual focus will be used.