Bingley
Veteran
I'm the opposite of MCTuomey: I've never had or shot w/ the summarit, but have, use and love the Canon 50/1.5. It's got the lovely sonnar dissolve wide open, but is very sharp from f.4 on, and I love the warmer rendering it gives of color (compared to the Canon 50/1.4, and based on Raid's most recent test of 50s). It also handles incredibly well mounted on a P or an M2.