I've been thinking of getting an EP-2 in the future and I'm in the research stage. I'm interested in a couple of the panasonic lens, the 7-14 and 45 macro. What functions will not work on a Olympus? Will Auto focus be gone, anything else? I have a E3 that is in use daily. I backpack this all over the place, even on vacations with the 12-60, 50-200 and tripod. Over the past year it's wearing on me a little and I'm really interested in a lighter system. I still have to handle the EP-2 and EPl1 a few more times, and bring in a SD card to take some shots before deciding. I did notice that I liked the grip on the Epl1 more than the EP-2, I'm tring to find out what is dumbed down in the EPL1 compaired to the EP-2. Thanks for any help.