The Canon EOS 5D Mark III is a full-frame digital SLR introduced in 2012, positioned as a professional and advanced-enthusiast body in Canon's EF-mount lineup. It succeeded the EOS 5D Mark II and was aimed at photographers needing a versatile stills-and-video workhorse with weather sealing and a robust autofocus system.

UK auction activity is thin: a single recent hammer result of £438 (January 2026) provides the only verified saleroom data point at present, so the current 'sells for' figure should be treated as indicative rather than a settled market price. As of today in 2026, buyers asking what a 5D Mark III is worth at auction should expect outcomes to swing on shutter count, sensor cleanliness and accessories — these are wholesale hammer prices and not retail asking figures.