A digital single-lens reflex camera widely known as 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. It became popular among the young generation in early 2000. When it replace film-based SLRs in the 2000s. The primary difference between a DSLR and other digital cameras are its reflex design scheme. In the reflex design, light travels through the lens, then to a mirror that alternates to send the image to either the viewfinder or the image sensor. The alternative would be to have a viewfinder with its own lens, hence the term "single lens" for this design. By using only one lens, the viewfinder of a DSLR presents an image that will not perceptibly different from what is captured by the camera's sensor. DSLR remain the most popular type of interchangeable lens camera in use since 2010, though it largely replaced by mirrorless system cameras in that very year. Some of the most popular DSLR models are:
· Canon EOS 5D Mark IV
· Nikon D3300
· Nikon D810
· Canon EOS 5DS
· Canon EOS Rebel T7i / Canon EOS 800D
· Nikon D500
· Canon EOS 7D Mark II
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