The Polaroid SX-70 Land Camera Alpha 1 is an instant camera. It was introduced by the Polaroid Corporation in 1977. The biggest innovations compared to the original SX-70 are the thread for a tripod, eyelets for a camera strap and the possibility of a fill-flash via the flash bar connection.
The SLR comes with a fixed focal length. The focal length is fixed and is 116 mm. The largest aperture is f/8, there is no autofocus with the instant camera. You have to focus on the subject by hand. To get sharp pictures, you have to be at least 26.4 cm away from your subject.
The camera has a built-in light meter. The Polaroid SX-70 Alpha 1 can automatically set the aperture and exposure time. You can influence the exposure time with the light/dark control. The instant camera can be mounted on a tripod.
The camera requires a battery for the power supply, which is located in the film cassette of this type of camera.