The Olympus OM-System S Zuiko Auto-Zoom 28-48mm f/4.0 is a wide-angle zoom lens with a constant max. aperture for 35 mm Olympus OM SLR cameras.
The S-Zuiko Auto-Zoom 28-48mm f/4.0 lens' design employs an optical formula of the Zoom-Nikkor 28-45mm f/4.5 Non-Ai, released in 1975. As is the case with all Olympus lenses, the lens came out as more compact and less heavy. The process of lens designing resulted in the appearance of a very interesting prototype - OM Zuiko MC 24-40mm f/4.
The lens produces high-quality images and is very handy for travel photography.