Canon EOS 100 (EOS 100 QD / EOS ELAN)

The Canon EOS 100, marketed as the EOS ELAN in North America, was introduced in 1991 as a mid-range 35mm SLR targeting serious photography enthusiasts. Building on Canon's EOS autofocus system established with the original EOS 650 in 1987, the ELAN represented a significant evolution offering more advanced features than entry-level models while remaining more affordable than the professional EOS 1. The camera incorporated Canon's innovative Eye-Control Focus system, a groundbreaking technology that allowed photographers to select the autofocus point simply by looking at it through the viewfinder. Its metal alloy chassis with polycarbonate outer panels provided a durable yet lightweight body weighing approximately 540 grams without lenses. With a top shutter speed of 1/4000 second and a 1/125 second flash sync speed, the ELAN delivered performance suitable for a wide range of photographic applications.

The EOS 100 featured a sophisticated 16-zone evaluative metering system linked to the autofocus points, delivering accurate exposure in complex lighting scenarios. Its user-friendly interface included an LCD panel and multiple customizable functions, with the QD variant offering an integrated data back for imprinting date/time information directly onto film. As a bridge between Canon's consumer and professional segments, the ELAN helped establish the company's dominance in the autofocus SLR market during the early 1990s. Its combination of advanced features like Eye-Control Focus, solid build quality, and reasonable price made it a popular choice among serious photographers seeking sophisticated autofocus capabilities without the weight and expense of professional equipment.