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A digital single-lens reflex camera (also called a digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film.
Our pick of the best full frame DSLRs from Canon, Nikon, Pentax and Sony Shares Most entry-level and mid-price DSLRs sport an APS-C sized sensor, with the physical dimensions of the chip measuring 23.6 x 15.7mm (22.2 x 14.8mm on Canon DSLRs).