Will the Canon EF 24-105mm f3.5-5.6 IS USM lens autofocus with the Canon EF12 II extender? How about with the EF 50mm f1.4 and EF 16-35mm f4L IS USM lens?Will they autofocus with the Mount Adapter EF-EOS R?Thanks, Chris
Thanks! I guess what I'm asking is will the EF12 II mounted to a Canon EF 24-105mm f3.5-5.6 IS USM lens on either an EOS 7D or EOS R still autofocus accurately or will I have to focus manually?
