I have a Pentax SMC 500mm f4.5 converted for EF which I use for static birds on my Olympus E-M5 and would like to try it on the 7D. However the camera indicates it cannot communicate with the lens so won't take the shot, is there a way I can disable this function, I can't find a way in the menu? If I can't do this it then rules out some other legacy lenses I would wish to try out.
Thanks
David
Thanks
David