I found a "partial" list of compatable lenses on the Panasonic Forum.

This is not a complete list - but includes different lenses that are (basically) compatable with the 4/3 systems.........and they will work with the Panasonic and Olympus adaptors. Anything compatable with the 4/3 system will also work withe the micro 4/3 systems. See, I've done my homework!

I don't think it includes the FD lenses - but they are compatable as I've seen a photo or two taken with the E-P1 and an FD lens. I wish I could find the website.

http://panasonic.jp/support/global/c...onnect/g1.html

ETA: More and varied lists:

Olympus lenses specifically for 4/3 (will work with micro 4/3)
http://www.four-thirds.org/en/fourthirds/lense.html

Here you can do a "matching simulation of a 4/3 camera and lens" and find out if they are compatable - note: these are only 4/3 cameras and compatable lenses.

http://www.four-thirds.org/en/produc...ing/index.html

Liz