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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.
Difference Between SLR and DSLR. SLR and DSLR are two different types of the modern camera. Cameras have traditionally played an important role in keeping our memories of good times intact in the form of photographs. Times have changed and we have switched over from films to digital cameras.