A small camera used to film 35 Some 16 mm or 8 mm film cameras have this kind of multi-level price. Depending on the quality and performance of the camera. Some cameras have a mechanism for both metering and automatic mechanism. This type of camera system for depth (Rangefinder) is easy to use smaller and cheaper camera, 35 mm single lens reflex. The difference is obvious. Viewfinder and a channel depth of the lens are separated from the recording. So when the camera is shooting close to the disparity between the visual image with the image on the film. Changing lenses, it could not make the picture changes when looking through the viewfinder, so this camera is equipped with a fixed lens camera.