Originally Posted by raid
SL + APO Summicron 50/2 SL
I would go for this. It is a sufficient upgrade to the M9 and you'll have a native lens to use with your body. You don't appear to be the high res type, and 24mp is still a small upgrade. I do like your decision to maybe do nothing a bit more though. For M lenses, I still think it is best to stick to an M body.