Single lens reflex 120 mm. or SLR camera with a system similar to the camera measures 35 mm. But it will take a 120 mm size film. The camera has a screen on a double lens reflex camera. You can change the eye level. Agility in use, less than the 35 mm because the size and weight more. Popular professional photographers used. The photography in advertising or photography. The packaging film can be removed from the camera, the film is called back so many kinds of films selected by the interchangeable use even while the film did not roll for the duration of the viewfinder to frame a retractable shade and a small magnifying lens. Allows to adjust the sharpness more accurately the image in the viewfinder is left to right. The motion requires a camera that is going to be difficult. Because Since the camera film size 120 mm a large with high-resolution grain and high-resolution color saturation for Adapted to compress images to a large.