has continuous autofocus when recording movies. Canon EOS 5D Mark III. Nikon D750. When recording movies they stay focussed and sharp. has a microphone input. Canon EOS 5D Mark III. Nikon D750. A microphone port allows connecting external high-end or specialized microphones. has a socket for a 3.5 mm audio jack. The Canon 5D Mark III was shot with the Canon EF 20mm f/2.8 USM with an in-camera lens profile. The LEICA M typ 240 was shot with a LEICA SUPER-ELMAR-M 21mm f/3.4 ASPH with an in-camera lens profile. The Sony A7 was shot with the same LEICA SUPER-ELMAR-M 21mm f/3.4 ASPH, but with no lens profile. 21mm Analysis 1. New sensor The EOS 5D Mark III didn't offer too huge a leap in terms of resolution over the previous Mark II – from 21.1MP to 22.3MP – but the new model ramps things up. Its 31.7MP CEJ0nr.