Hello everyone, my first post here. I am eagerly awaiting my pre-ordered Olympus OM-D, my first foray into m4/3. I'll probably get a Panasonic 20/1.7 or 25/1.4 as my first lens, but would like to play around with a manual focus 50-55mm f/1.2 lens for portraits and such. I would like to get one that is as sharp as possile at f/1.2 (otherwise I might as well get a 50 1.4 or 1.8). I know there are lots of options, such Canon FD, Olympus, Nikon and Minolta. But I know nothing about them. Looking forward to your replies!