Canon EOS 600 (EOS 630 / EOS 630 QD)

The Canon EOS 600 (also marketed as EOS 630 and EOS 630 QD) represented Canon's mid-range offering in their second-generation EOS autofocus SLR lineup when introduced in 1989. Positioned between the entry-level EOS 10 and the professional EOS-1, this camera featured Canon's EF bayonet mount and represented a significant step forward from their original EOS series. The camera offered a sophisticated autofocus system with a choice of focusing points, along with program, aperture-priority, shutter-priority, and full manual exposure modes. The QD variant included a date-back feature, adding a practical element for photographers who wanted to imprint dates on their images.

As part of Canon's ambitious EOS system launched to compete in the increasingly competitive autofocus market, the EOS 600 embodied Canon's strategy of integrating electronics and optics. Its compact yet robust design made it appealing to advanced amateurs and serious enthusiasts who wanted professional features without the flagship price point. The camera's 1/2000 second shutter speed and 1/125 second flash sync speed were competitive for its time, while its built-in motor drive provided convenient automatic film advancement. While not revolutionary in itself, the EOS 600 played a crucial role in establishing Canon's presence in the autofocus SLR market, eventually helping to position Canon as Nikon's primary competitor in the professional arena.