Have this posted with my EP-3 and 12mm thread, but really should probably be on its own. So, I'll copy it to here: Quick update on the four-thirds focus. For the Pana-Leica 14-150mm four-thirds lens with Lumix DMW-MA1 adapter, the E-P3 definitely "hits" the target without in and out searching much more often than the E-PL1. When the focus is found "first-try" with either lens, the E-P3 is still a bit faster. Conditions were dim room, 150mm, focus object about 8 feet away, not too bad of contrasts to lock onto. Typical "hit the first time" press-til-focused splits were the better part of a second for the E-P3. About a second for the E-PL1. The "missed, and keep searching" is a lot less for the E-P1, which is more important for these. Perhaps 1 out of five for the E-P3 verses two or three out of five for the E-PL1. This was for adjusting focus point among the same four or five reference points for the subject with either camera. I also went out and shot with this lens "in the wild" rolleyes and that confirmed my impressions: the Pana-Leica 14-150mm sure seems a bit faster and more often able to get the focus on the first try with the E-P3. Good news four us four-thirds glass owners!