By contrast, Canon broke compatibility twice, moving from FL to FD (1971) to EF (1987). But since the start of EF, compatibility has been excellent. New EF lenses with features like IS, USM, STM work perfectly even on the oldest Canon EOS 650 film camera body. And the earliest EF lenses work on modern bodies.
By contrast, Canon broke compatibility twice, moving from FL to FD (1971) to EF (1987). But since the start of EF, compatibility has been excellent. New EF lenses with features like IS, USM, STM work perfectly even on the oldest Canon EOS 650 film camera body. And the earliest EF lenses work on modern bodies.