<P> A digital single - lens reflex camera ( also called 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 . The reflex design scheme is the primary difference between a DSLR and other digital cameras . 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 traditional 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 differ substantially from what is captured by the camera 's sensor . A DSLR differs from non-reflex single - lens digital cameras in that the viewfinder presents a direct optical view through the lens , rather than being captured by the camera 's image sensor and displayed by a digital screen . </P>
<P> A digital single - lens reflex camera ( also called 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 . The reflex design scheme is the primary difference between a DSLR and other digital cameras . 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 traditional 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 differ substantially from what is captured by the camera 's sensor . A DSLR differs from non-reflex single - lens digital cameras in that the viewfinder presents a direct optical view through the lens , rather than being captured by the camera 's image sensor and displayed by a digital screen . </P>
what is the meaning of d in cameras
what is the meaning of d in cameras
digital
digital