- Sep 26, 2021
It looks like 5D II (2008), 6D (2012), 70D (2013) era and before those couldn't AF at f/8, so basically ten years ago.Yes, but there are plenty that cannot. Thus, Canon kept all EF lenses to f/5.6. Since MILCs don’t have that limitation, Canon eliminated that constraint, first slightly with EF-M then more significantly with RF.
That worked in the favour of photographers in terms of lens design for so long, because Canon could only skimp so far on the lenses with aperture and optical correction. Now the tables have turned, Canon can now sell much less of a lens and it will still work.