I've been a Nikon user for most of my life. And I've recently expanded my horizons into some older Canon SLR's. I currently own the A-1, and tomorrow I'm going to pick up a T90.
Not having a lot of familiarity with Canon, I notice that there are a couple of 50mm f/1.4 lenses out there in the FD mount. It appears the bright breech lock ring models have "S.S.C." etched on the barrel face. I know the SSC was supposed to be a real jump in lens coarting, but I'm wondering if a newer 50mm f/1.4 would be a sharper alternative. Price isn't really a factor, and I already own a 50mm f/1.8 that came with the A-1.