The Canon EOS-1Ds Mark III is a professional full-frame digital SLR introduced in 2007 as the top of Canon's EOS-1 series. It was positioned as Canon's flagship studio and high-resolution body, sitting above the sports-oriented EOS-1D Mark III in the line-up at launch.

With only one tracked UK auction hammer result (£300 in March 2025), today's saleroom value for a Canon EOS-1Ds Mark III sits around the £300 mark for a working body. As a wholesale auction figure that excludes commission, this is well below typical dealer asking prices, and what the camera actually sells for can vary sharply with shutter count, sensor condition and whether chargers and batteries are included.