The Fujica SLR models were all 35mm cameras with through the lens exposure meters. Each had its individual characteristics, mainly in the type of metering or in the meter readout:
- ST701 - the first camera of the system, with shutter speeds from 1 second to 1/1000 second and stopped-down metering operated by a button switch on the camera front;
- ST705 - an upgraded version with speeds from 1 second to 1/1500 second and full-aperture metering operated by the first pressure on the shutter release;
- ST705W - as ST705 but with contacts for automatic winder and with shutter speed indicated in viewfinder;
- ST801 - a model with extended shutter speed range from 1 second to 1/2000 second, and a meter readout, which uses 7 LEDs instead of a meter needle;
- ST901 - the most sophisticated version, has an electronic shutter controlled by the metering system to give shutter speeds from 20 seconds to 1/1000 second in a continuously variable range. It can be used manually at the orthodox speeds from 1/60 to 1/1000 second. The meter readout is digital, indicating the range within which the meter will set the shutter speed when the shutter release is fully depressed;
- AZ-1 - also an automatic-exposure model with electronically-controlled shutter but shutter speeds run only from 1/2 to 1/1000 second in the normal steps. It can be used manually at speeds of 1/60, 1/250 and 1/1000 second. The meter readout is by a series of LEDs indicating the shutter speed selected by the meter circuit. Sustained first pressure on the shutter release locks the exposure setting. An auto winder was available;
- ST601 - the basic model, with shutter speeds from 1/2 second to 1/700 second and stopped-down metering operated by a button switch on the camera front, 0.92x viewfinder magnification;
- ST605 - as ST601 but with slightly larger 0.96x viewfinder magnification;
- ST605N - as ST605 but with shutter speed indicated in viewfinder;
- ST605 II - full-aperture metering version of the ST605 with shutter speed indicated in viewfinder.
All the cameras took universal 42mm-thread lenses and attachments but the full-aperture metering facility was retained only with Fujinon lenses specifically made for Fujica cameras. These lenses had a recess to accept the locking pin on the lens flange and a lug to move the full-aperture teller surrounding the flange.