The Canon EOS 10 debuted in 1990 as a mid-range enthusiast EOS SLR, sold in the Americas as the EOS 10s and in Japan as the EOS 10 QD. It slotted between the entry-level EOS 1000 and the professional EOS-1, adding a barcode-programmable command system aimed at semi-serious photographers.
It uses the Canon EF mount on 35mm film, with a Multi-BASIS AF sensor giving 3-point autofocus, a vertical metal focal-plane shutter running 30 seconds to 1/4000 second, ISO 6-6400 sensitivity, and a body weight of about 582g powered by 2CR5 batteries.
Its multi-point autofocus and faster top shutter speed put it ahead of contemporaries like the EOS 600, and its barcode reader for setting custom shooting modes was an unusual feature for its era, later carried into the EOS 100.
These bodies are reasonably plentiful secondhand and offer more capability than base EOS models for a modest price. Check the AF sensor responds in low light, test the shutter at both fast and slow speeds, and inspect the battery contacts for corrosion.