Can SLR take square photos?

Yes, you can. A single-lens reflex camera can take square photos. There is a setting of 1: 1 in the menu of the single-lens reflex camera. Then, you can take a square photo by setting it to 1: 1, but it is usually more beautiful to take a photo at 3:2.

The SLR has only one lens, which is used for shooting and framing, and the parallax problem is basically solved. When taking a view, the light emitted by the object is focused by the lens, reflected by the oblique mirror and focused for imaging, and then reflected by the "roof prism" raised at the top.

Photographers can observe the scene through the eyepiece, and it is the same image as the scene, so it is very convenient to view and focus. When shooting, the mirror will bounce up immediately, the lens aperture will automatically shrink to a predetermined value, and the shutter will open to make the film sensitive; After exposure, the shutter is closed and the aperture of the mirror and lens is reset at the same time.

Extended data

SLR cameras (SLR cameras) are also called SLR cameras. Refers to a camera that uses a single lens, through which light shines on the reflector and takes a view through reflection.

The so-called "single lens" means that the photographic exposure light path and the framing light path * * * use one lens, unlike the paraxial camera or the double-reflex camera, the framing light path has an independent lens.

"Reflection" means that a plane mirror in the camera separates the two light paths: when the mirror falls during framing, it reflects the light of the lens to the pentaprism and then to the framing window; When shooting, lift the reflector quickly, and the light can shine on the film or photosensitive element CMOS or CCD.

Baidu Encyclopedia-Single lens reflex camera