Canon's full-frame DSLR that defined wedding and event photography for half a decade.
The Canon EOS 5D Mark III was launched in 2012 as the successor to the revolutionary 5D Mark II. With a 22.3MP full-frame sensor and the same 61-point AF system later used in the 1D X, it was Canon's first mid-range full-frame body with a truly professional autofocus system.
The 61-point AF system with 41 cross-type points was a massive upgrade from the Mark II's 9-point system. Burst rate is 6fps. Dual card slots using CF plus SD provide redundancy. 1080p video is excellent with clean HDMI output. The body is magnesium alloy with comprehensive weather sealing. Battery life is around 950 shots.
The Mark III is still respected for its reliable autofocus, accurate metering, and Canon's signature colour science. It lacks 4K video, in-body stabilisation, and Dual Pixel AF which arrived with the Mark IV. The 22MP sensor shows its age against modern competitors for landscape work but remains excellent for reportage.
Strong used market with prices depending on shutter count and condition. Check shutter count which is rated for 150,000 actuations, inspect the CF card slot for bent pins, test the AF system in low light, and verify the rear screen. Bodies under 80,000 actuations are considered low-use. Excellent value for a professional full-frame body.