Hello, I've just registered here so I'm a newby. Not so new to photography though. Have been shooting for forty years or so, digiitally for the last ten. I've just sold all my Canon DSLR gear, haven't used it since buying a Leica D Lux-4 eighteen months ago. The Leica will stay but I see the m4/3 system as a logical step in my desire for small but capable. My gear does not have to be pocketable. I do, however, quite a bit of motorcycle touring where space is always at a premium. I have a few lenses that I think will be effective on a m4/3 camera; Konica 40mm f1.8 and 135mm f3.5, Helios 58mm f2.0, and a Pen F 50-90mm zoom. I plan to buy a Panny 20mm and maybe 14-45 zzom. I continue to waffle about on the choice of body to use. The GF-1 is probably my "favorite" but I worry about how well it will work with my lenses, especially the longer ones. How well will I be able to focus manually? How is holding a 270mm equivalent lens? Or I could go for the G1/GH1 which would give me a viewfinder for focus and a body shape that can place the camera against the forehead for tele use. But do I give up a lot of size this way? Lastly, there is the E-P2, wins on style/size and has the eye-level viewfinder but seems to suffer in the AF mode. I can't get a good read on "how slow is slow?". Yes, I should go to a camera store and try them, but there are none anywhere near here. So I'm posting in hopes of advice from you folks who may have the same needs. Thanks for listening. alan. Note from admin (Amin): This post and chalkdust's reply below were copied here from a thread focused on the use of manual lenses on Panasonic bodies. I added the title.