I’ve recently been shooting film with an old EOS camera from the 90s I bought used and it was really nice being able to use the EOS lenses I bought for my DSLR in the 2000s and 2010s. It’s a dying standard now but it’s really impressive it lasted as long as it has, with significant technological innovation on both sides of the lens mount while retaining full compatibility. A brand new EOS EF lens still works with an…
As a Canon owner, Nikon has a much longer back compatibility range. Having autofocus motors and IS in body rather than in lens seems to be a part of their trick.
Their f mount autofocus lenses are a variety of standards that are not at all backwards compatible across eras.