Nowadays, Canon utilizes an EF mount for its DSLRs ... not the only companies out there that produced quality 35mm film SLR cameras. The marketplace was filled with them in decades past, including ...

It's a departure from its SLR line, which split between EF lenses for full-frame and EF-S for APS-C. Canon sells another line of mirrorless cameras, EOS M, with APS-C sensors, but there's no cross ...