I have a Canon 85mm f/1.8 and when it's attached to an F1n or FTB it fits into the big compartment. When I was young and foolish, a carried 2 Canon bodies and 5 prime FD lenses in that bag. Back then, I was told that zoom lenses were'nt as good. I'm not a pro anymore, but now I just carry 1 body and 2 lenses max. The Domke is sometimes too big so I switched over to a Crumpler 4 Million Dollar home. It's a great bag. I'm tired of back aches.