Canon's first full-frame pro DSLR — the EOS-1Ds, 11MP, EF mount, 2002.
The Canon EOS-1Ds, introduced in 2002, was Canon's first full-frame professional digital SLR and the studio-and-resolution counterpart to the speed-focused EOS-1D. It sat at the top of the EOS range as Canon's answer for photographers who needed the full 35mm frame and high pixel counts for commercial and studio work.
This is a professional full-frame digital SLR with a magnesium-alloy body, integrated vertical grip and weather sealing. It carries an 11-megapixel full-frame sensor, takes Canon EF-mount lenses, and uses an optical pentaprism viewfinder covering the full frame. Continuous shooting is slower than the 1D at around 3 frames per second, reflecting its studio and resolution priorities. It is a stills-only body with no video capability.
The 1Ds was built for studio, portrait, landscape and commercial photographers who valued resolution and the full-frame angle of view over frame rate. The full 35mm sensor let photographers use EF wide-angle lenses at their intended coverage, a notable advantage over cropped bodies of the time. It handles as a large, heavy professional tool suited to tripod and studio use.
Being an early full-frame professional DSLR, request the shutter actuation count against a rated life in the hundreds of thousands of cycles, and expect a used example to lean toward second-body or budget pricing. Check the sensor carefully for dust and marks, test the screen for dead pixels, and inspect the card and battery doors. Confirm the battery still holds charge and that a working charger is present, as consumables for this generation are ageing.
