They make a fourthirds adapter for all Olympus DSLR, and Panasonic for that matter. Auto aperture and auto focus will not work. You have to do it by hand. The non pro version Olympus have a smaller view finder making it more difficult to focus. Not impossible, just difficult. With the newer version you can use live view and the spot focus feature. There are some awesome OM lens out there but they are really made for SLR's (large sensor). The fourthirds sensor is smaller. It's fun to play with and dirt cheap if you already own an Olympus DSLR. The adapter can be found on Ebay for about $35. Let me know if you have no need for the OM lens, I'll take them off your hands....