The adapter is very well suited for the use of old Olympus OM lenses on Micro Four Thirds cameras (eg PEN E-PM2). I have tested a 34 year old Zuiko lens on my Olympus PEN with the adapter and made with manual focus and time / Shutter Priority very good pictures. I had tried before with the original Olympus adapter for 160.-, but never really sharp images get. This "low part" for a fraction of the price (12.-) succeed actually useful results. Slightly heavier than the original Olympus adapter, but for old lenses continue to use very well geeignet.Ich the new camera lens Olympus M.Zuiko Digital ED 40-150 mm've re-gained with the camera, but also wanted my old analog Lenses yet use. It worked. This part is therefore recommended. My little PEN makes so great paintings- with the limitation of manual focus on the lens as it was standard early 80s. The attachment to the camera works very well - adapter connection to the old lens a bit sluggish (I leave the lens but eh on the adapter).