The Canon EOS 20D is a mid-2000s advanced-amateur and professional-tier DSLR that succeeded the EOS 10D, reaching new heights in both image quality and camera responsiveness for its era. It’s aimed at enthusiast and professional photographers who need fast, reliable performance from an APS-C body, particularly for action, sports, and event photography.
At the core of the 20D is a newly developed 8.2-megapixel APS-C CMOS sensor (22.5 x 15.0mm) paired with Canon’s DIGIC II image processor, delivering high image quality, natural color reproduction, and fast processing of large-volume data. This combination enabled continuous shooting of high-quality JPEG images at approximately 5fps for up to 23 consecutive frames (or 6 frames in RAW), a notable speed for its class at the time of release. A fast startup time of just 0.2 seconds and a maximum shutter speed of 1/8000 second contributed to stress-free, responsive shooting.
Autofocus is handled by a 9-point wide-area AF system, with focus points superimposed in the viewfinder for straightforward, accurate framing, supporting One-Shot, AI Servo, and AI Focus modes. Metering uses a TTL, 35-zone evaluative system, along with partial and center-weighted average options. The camera offers full manual, aperture-priority, shutter-priority, and programmed autoexposure modes, along with an auto pop-up E-TTL II flash system for automatic exposure with compatible Speedlites.
Handling centers on a 1.8-inch LCD screen (118,000 pixels) for image review and menu navigation, along with a bright optical pentaprism viewfinder. Connectivity includes a USB 2.0 Hi-Speed interface, enabling file transfers up to ten times faster than the EOS 10D. The camera stores images on CompactFlash (Type I or II) or Microdrive media.
Build quality includes a durable body measuring approximately 144 x 105.5 x 71.5mm and weighing about 685g (body only), powered by a rechargeable BP-511A lithium-ion battery pack rated for roughly 700 shots per charge. The EOS 20D uses Canon’s EF/EF-S lens mount, giving it access to Canon’s extensive range of EF lenses along with EF-S optics designed for APS-C sensors.
Key Features
– 8.2MP APS-C CMOS sensor with DIGIC II processor
– Approximately 5fps continuous shooting (up to 23 JPEG / 6 RAW frames)
– 9-point wide-area autofocus system
– TTL 35-zone evaluative metering
– Full manual, aperture-priority, shutter-priority, and programmed AE modes
– Auto pop-up E-TTL II flash
– Shutter speed range of 1/8000 sec to 30 sec, plus bulb
– 1.8″ LCD screen (118,000 pixels)
– Optical pentaprism viewfinder
– USB 2.0 Hi-Speed connectivity
– CompactFlash (Type I/II) and Microdrive storage
– BP-511A lithium-ion battery (~700 shots per charge)
– Canon EF/EF-S lens mount

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