Do SLR cameras have to be equipped with lenses?

If a SLR camera wants to take pictures, it must be equipped with a lens, otherwise it can't complete the shooting.

Because SLR camera is a single-lens reflective viewfinder camera and abbreviation, it consists of lens and body, both of which are indispensable.

SLR camera:

Digital SLR camera is a single lens reflex digital camera, referred to as SLR (single lens reflex).

This technology is to install a mirror at a 45 angle in front of the film plane, and there are ground glass and pentaprism eyepiece above the mirror in turn. The pentaprism reflects the real image light many times to change the optical path, and sends the image to the eyepiece, so that the image seen in the observation window is always consistent with the image on the film, and the observation range is basically consistent with the actual shooting range.

The unique design of this prism enables the photographer to directly observe the image passing through the lens from the viewfinder.

SLR camera lens:

Single lens reflection. A camera using this technology has only one lens, which is used for both photography and framing. Only in this way can the problem of poor photo quality caused by parallax be fundamentally solved.

Moreover, when taking a view with a SLR camera, the light emitted by the subject is focused by the lens, reflected by the oblique mirror to the focusing screen for imaging, and then reflected by the "roof prism" with a raised top. Photographers can see the scene through the eyepiece, and it is the same image as the scene, so it is very convenient to focus on the scene.