Canon EOS 10 (EOS 10S / EOS 10 QD)

Introduced in 1990 as part of Canon's mid-range EOS autofocus SLR lineup, the EOS 10 (available as the EOS 10S and EOS 10 QD variants) represents a significant step in making advanced autofocus technology more accessible to serious enthusiasts. It features Canon's pioneering Eye-Controlled Focus system, allowing users to select the autofocus point by looking at the corresponding area in the viewfinder—a notable innovation for the era. The camera boasts a robust autofocus system with predictive tracking, along with advanced exposure modes like Programmed AE, Shutter-Priority AE, Aperture-Priority AE, and full Manual mode. Its ergonomic design incorporates a comfortable grip, a clear viewfinder with a split-image/microprism focusing aid for manual focus when needed, and a top shutter speed of 1/4000 second. While not a professional workhorse like the contemporaneous EOS 1, the EOS 10 offered a compelling feature set at a competitive price point, bridging the gap between entry-level models and high-end professional SLRs.

The EOS 10S was the base model, while the EOS 10 QD added a date/time imprinting function ("QD" for Quartz Date). Both utilized Canon's EF lens mount and relied on a 6-segment evaluative metering system for accurate exposures. Constructed primarily with a durable polycarbonate body and featuring Canon's excellent build quality for its class, the EOS 10 was a reliable and capable tool for photography enthusiasts during the early 1990s. It exemplifies Canon's strategy of incorporating cutting-edge features like Eye-Control into more affordable cameras, driving the adoption of autofocus among serious amateurs without the cost of their flagship models. Its introduction solidified Canon's presence in the mid-market SLR segment during a period of intense competition.