I was curious about all the different lenses available out there for the 4/3 cameras. Especially when i came across a company's site for a new 50mm lens made for the m4/3 system With a maximum aperture of, f/0.95 that sells for $750. It got me wondering what are some of the lenses people use already. How much do they go for and how well do they preform, or in some cases, why they got that particular lens. Now i know some people like a very fast lens for low light photography and some use it for portraiture work, because of either the shallow depth of field or the Bokeh it produces. But some very fast lenses also are not preforming their best at wide open aperture, needing to be stopped down a stop or to to be at their sharpest. I love using fast lenses mostly for shallow depth of field and low light photography, I'm not really concerned with bokeh ever. This got me wondering what are the best lenses out there in the second hand market for uses on the 4/3 cameras. I only have used and bought Minolta Manual lenses and can only speak to their performance. I do know about many other brands and have used some of them but i figure there must be lots more out there i haven't seen or don't know about, however i don't know whats good since i never used much other than Minolta glass. SO I figured i would pose this question to all the people out there that use the various fast lenses adapted to your 4/3 camera. What are some fast lenses you use, what type of shots did you acquire it to do and how do they preform?