Lenses Great by F2 (Help Add to Our List!) I shoot a lot in low-light (or else long focal length with medium light) and although the OM-D sensor is useable at ISO 3200, it would be nice if every lens were like the 75/1.8 and sharp (contrasty, little CA and fringing, etc) wide open (corners excluded). A lot of f1.4 lenses aren't sharp until f4. Based on lenses that I and others in this thread own, I'm compiling a list of "YES," "NO," and "MAYBE" lenses. The need to hold the lens steady is very important and since longer focal lengths are harder to hold, that's been kind of factored in. YES - Great by f2.0 Olympus 12/2.0 - It's so wide it's easy to hold even if you stop down a tad. Panasonic 14/2.5 - a definite yes because it's sharp wide open and very easy to hold steady Panasonic 20/1.7 - not only is it wide but it's great at f2 anyway Panasonic 25/1.4 - see Netfun's post below Olympus 75/1.8 - Wonderful at f1.8 Pentax 50/1.7. It's bad at 1.7, but it all clears up by f2, and f2 isn't much worse than f5.6. OM 50/2 and 90/2 macros - see Netfun and inuini2005's posts below Canon FD 50/1.4 - see gcogger's post below MAYBE Olympus 45/1.8 - usable wide open, but is really very good at f2.2 and doesn't get a whole lot better if you go to f5.6 Olympus 60/2.8 - macro, so you can't fault it for being f2.8. Seeing that it's already very good wide open and so long, I put it here (Surprisingly) NO - Need F4 for Good Image Quality Konica Hexanon 40/1.8 - according to many, one of the sharpest lenses ever. Sure, but, I have 3 of them sitting here and I'll tell you, at f1.8 the lenses are not good. f2.8 is also mediocre. You need f4 or f5.6 before you can call this lens great Konica Hexanon 50/1.7 - matches the Pentax 50/1.7 at all apertures but most copies don't have half stops thus the next stop is 2.8. I haven't tried the older version which has half-stops at f2. UPDATE: lens can be modified to have f2 Konica Hexanon 57/1.4 - has half-stops at f1.4, f1.7, and f2, but the lens is not sharp at any of those apertures. f2.8 is mediocre. (f4 and f5.6 are terrific, however.) Konica Hexanon 135/3.2 and 3.5 - only considered because being sharp at f4 at such a long FL is noteworthy (neither are good wide open). I would like to try the 2.8 versions. That said, you still need 1/200 or so to hold them steady. Anyone else have any lenses that are very good by f2 or f2.2?