Technically, this lens doesn't fit into the regular MC category, as there were changes in the line designated by the dropping of the 2 letter lens code after the word Rokkor. It's actually more like an early MD than a MC. This is a very nice chunk of glass on m4/3, but it really wants to be on something that has a grip. There's enough weight to warrant this, although there are heavier 135's. It does balance fairly well on the M10 though. It's sharp enough to start with, but the images seem to take nicely to additional sharpness in post. Color is just really nice. I had a hard time believing it when seeing the first batch on the screen. Processing notes here for these: just a quick touch up with curves and a generous dash of unsharp mask. That's it.