A DSLR camera is a digital camera that combines the optics and mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the sensor. The primary difference between a DSLR and other digital cameras is the reflex design scheme. In the reflex design, light travels through the lens and then to a mirror that alternates to send the image to either a prism, which shows the image in the optical viewfinder, or the image sensor when the shutter release button is pressed. The viewfinder of a DSLR presents an image that will not differ substantially from what is captured by the cameras sensor as it presents it as a direct optical view through the main camera lens, rather than showing an image through a separate secondary lens.
In summary, a DSLR camera is a type of digital camera that uses a mirror to reflect light through a lens to an optical viewfinder or image sensor, and it offers a wide range of options for taking professional-quality photos.
