Camera Lens Mount Adapters Rings M42-OM OM 4/3 E520 E620

E520, E620 and other 4 / 3 bayonets cameras The auto focusing will not work with this adapters rings The adapters no electrical connection and diaphragm & focusing are required to be set by manual Useful accessory allows you to attach cameras to a telescopes, camera adapters, and other astrophotography accessory All metal constructions and anodizing aluminium process, for long for time use