All About DSLR Cameras
Digital single-lens reflex (DSLR) cameras are based on the design of 35mm film single-lens reflex (SLR) cameras. DSLRs take their name from their through-the-lens viewfinder system that reflects light from the lens with a mirror into a prism. The mirror flips out of the way at the moment a photo is taken, giving DSLR cameras their distinctive clicking noise. DSLR cameras offer more manual control over the camera's functions than compact digital cameras.
Many of today's DSLR cameras offer live preview that shows the viewfinder's image on the display screen.
Interchangeable Lenses
Almost all DSLR cameras use an interchangeable lens system that allows the photographer to choose a specific lens for different applications. Each camera maker uses a proprietary lens mount for their system of lenses, which means cameras and lenses from different brands aren't interchangeable.
Professional DSLR Cameras
On the top end of the DSLR spectrum are professional-grade cameras. Pro DSLR cameras are built to withstand more intense use, and usually feature rugged alloy bodies and more durable components. Some top-of-the-line DSLR cameras use full-frame image sensors, meaning their sensors are virtually the same as a 35mm film negative. These sensors produce higher-resolution images and perform better in low-light conditions. Other professional DSLRs use smaller image sensors that still have high-megapixel counts and yield high-resolution images unattainable by compact digital cameras. Most current pro DSLR cameras also offer high-definition video capture.
Prosumer DSLR Cameras
Designed to appeal to everyday consumers, so-called "prosumer" DSLR cameras incorporate many of the high-tech features of professional cameras, such as video capture, but lack their rugged build and fast frame advancing. Some prosumer DSLRs use the same smaller image sensors used by their pro counterparts, while more economical models use even smaller sensors.
Image Storage
Most DSLR cameras store their photos on either compact flash (CF) or secure digital (SD) digital memory cards.
Many of today's DSLR cameras offer live preview that shows the viewfinder's image on the display screen.
Interchangeable Lenses
Almost all DSLR cameras use an interchangeable lens system that allows the photographer to choose a specific lens for different applications. Each camera maker uses a proprietary lens mount for their system of lenses, which means cameras and lenses from different brands aren't interchangeable.
Professional DSLR Cameras
On the top end of the DSLR spectrum are professional-grade cameras. Pro DSLR cameras are built to withstand more intense use, and usually feature rugged alloy bodies and more durable components. Some top-of-the-line DSLR cameras use full-frame image sensors, meaning their sensors are virtually the same as a 35mm film negative. These sensors produce higher-resolution images and perform better in low-light conditions. Other professional DSLRs use smaller image sensors that still have high-megapixel counts and yield high-resolution images unattainable by compact digital cameras. Most current pro DSLR cameras also offer high-definition video capture.
Prosumer DSLR Cameras
Designed to appeal to everyday consumers, so-called "prosumer" DSLR cameras incorporate many of the high-tech features of professional cameras, such as video capture, but lack their rugged build and fast frame advancing. Some prosumer DSLRs use the same smaller image sensors used by their pro counterparts, while more economical models use even smaller sensors.
Image Storage
Most DSLR cameras store their photos on either compact flash (CF) or secure digital (SD) digital memory cards.
