This is my first post on the m43 user group, so hi to everybody! I just published a review on using Jupiter 8 lens on Panasonic GF1 (or, in general all Micro Four Thirds cameras). It a very interesting lens due to its sonnar heritage and characteristic image rendering, wide open it "glows" quite magically. For those who don't know this lens, its a 50mm f/2 for M39 rangefinders (such as zorkis, feds and even leicas), easily found on the bay - it becomes a fastish medium tele lens on m43 cameras. I hope you find it interesting. I'd love to hear your feedback. Jupiter 8 on Micro Four Thirds Review | NICO-FOTO Kind regards, Nico.