I purchased this Zuiko 50mm f/1.4 here a few weeks ago. The lens is great with perfect optics, smooth focusing and superb aperture ring action but after I tried it for a while I decided that alternative lenses are not for me. Cosmetically the lens shows only the slightest signs of use.
The lens comes with an AF-confirm adapter from eBay seller ericcc1006. That's a good adapter that is well machined and the AF confirm actually works fine. Both Olympus caps are supplied as well as a Canon rear cap for the adapter. Also included in the deal is a Heavy Star metal screw-in hood.
Asking price is US$ 100. That is less than what I paid for the kit and you will get something that actually works in one package instead of trying to locate a fine lens, then wait three weeks for an adapter from China.