New to MFT but an old timer with photography. I have a question that has been asked and answered a dozen times, but never conclusively, IMO. I bought a refurb E-Pm1 to play with before taking the big leap into MFT (Canon FF user now). Like a lot of other folks I am confused by all the lenses and variations, specifically the Oly 40-150 and variants. I had heard all the great things about the original 3.5, but after ordering one realized they were using it with an adapter. Some people swear its the way to go, others say nay, some say focus is a little slower but useable, others are not as impressed. Sharpness is the most importation thing to me, followed by focus speed and weight. I am pretty sure its the sharpest, but also it is going to focus either a little or a lot slower depending on who you listen to. So if anyone out there has used both the 4/3 and MFT of the 40-150, is the focus speed acceptable for anything other than sports? Could you quantify, like does the MFT seem 50% faster? 200%? 50% is acceptable, 200 isn't. My kit 14-40 impresses with the focus speed, and not too shabby in the sharpness area either. Thanks a bunch!