The Fujica STX-1 was manufactured by Fuji during the late 1970s and early 1980s and was their entry level SLR during that time. It was introduced to the United States in 1979. The cloth type focal plane shutter is mechanical, with a top speed of 1/700th of a second and a flash sync at 1/60th of a second. The lowest speed is 1/2 second and the camera includes a bulb setting along with shutter release cable connection. Selected shutter speed is shown along the left side of the viewfinder through a mechanical linkage. A DOF preview control is present, conveniently placed on the front of the camera next to the lens.

Everything about the STX-1 is manual. No program modes are available. The camera does require a battery, but only to run the meter.

Compatible batteries: Two of LR44-type alkaline-manganese batteries; HR44-type mercury batteries; SR44-type silver oxide batteries.

The light meter on the STX-1 is an averaging, moving coil analogue type, whose operation is scaled by the camera's shutter speed and aperture settings. This appears on the right side of the viewfinder. The later STX-1n model has a meter consisting of several small LEDs, but the overall effect of these is rather vague compared to the earlier analogue meter. The other change in the STX-1n is a redesigned battery hatch.

The STX-1 has a Fujica X mount, which is compatible with Fujica X lenses. Although often difficult to find, a decent selection of these lenses are available on online auction sites.

The STX-1 was also sold by Porst in Germany, as the CR-1.