The Fujica GS645W Professional Wide was released in October 1983 and is a viewfinder camera with scale focusing. It uses an EBC Fujinon W 45mm f/5.6 lens comprised of 6 elements. The camera was thought to complement a 35mm or 4x5 camera for on location shooting, especially landscape photographs. For this reason, Fuji also selected the 45mm lens. It is a 35mm equivalent to 28mm. Filters of 49mm can be used. Aperture stops on the lens include 22, 16, 11, 8 and 5.6. The light meter has a measuring range of 3.5 to 18 EV and can be set from 25 to 1600 ISO in 1/3 stops.
The viewfinder has a bright frame and parallax correction indicator, it has a 0.45x magnification. Scale focusing is used on the GS645W lens with a range of 1m to infinity. with markings at 1, 1.2, 1.5, 2, 3, 5, 10 meters and inf. Click stops at 2 and 5 meter markings. The viewfinder is a reverse Galilean type with a parallax correction indicator. A 0.45x magnification with a 90% field of view at 1m, and 87% at inf.
