Like all other types of batteries, Li-ion batteries will wear down over time, holding less and less charge. Apple says its laptop batteries will reach 80% of their original capacity after âup toâ 1000 full discharge cycles. Other manufacturers commonly rate their batteries 300 to 500 cycles.
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.
SLR vs 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.