is really ridiculously small. I have just sold off the two last lenses of the Canon system(50D), the 60mm EF-S Macro and the 100 mm 2,8 EF Macro and plowed the gains of those two into a Oly 60mm on the European Cash-back scheme, so got the Oly at 20ish % off. First impression straight out of the box, are a massive jaw-drop over the size... Second one, after getting it mounted on the GX7 and doing some quick focus tests from close to far and back is that it is incredibly fast moving, opening it fully, in a dusky lit living room in the middle of the night, and aiming it into a unlit kitchen, and getting .30 sec with 2.8 is that it is rather bright as well... If this is the standard on the primes to the M-43 system, I am really beginning to see what all the fuzz is about. Cant wait to get into it.