Olympus's improved half-frame Pen — faster fixed lens, mechanical leaf shutter, twice the frames per roll, 1960.
The Olympus Pen S was released in 1960 as an improved version of the original half-frame Pen designed by Yoshihisa Maitani. It kept the compact half-frame format that records twice as many images per 35mm roll while upgrading the lens and shutter over the first model, continuing the Pen family that would grow into a long-running line of small cameras.
The Pen S is a fixed-lens half-frame camera that exposes vertical half-frame images on standard 35mm film. It has a fixed lens with a wider maximum aperture than the original Pen and a leaf shutter with a broader speed range, with scale or zone focusing. As a mechanical camera it fires without a battery, and exact aperture and shutter figures are omitted here where not confirmed rather than guessed.
In use the Pen S suits a photographer who wants a compact, economical half-frame camera with a slightly faster lens than the original, well suited to travel, street and student photography. The half-frame format gives many exposures per roll and a small negative, and the manual mechanical operation keeps it simple and free of battery dependence.
When buying, confirm the leaf shutter fires across its speed range and that the film advance and half-frame counter work correctly. Inspect the lens for haze and fungus, check the light seals for perished foam, and look for sticky aperture blades; as a mechanical camera it has no meter battery to test, so focus condition checks on the shutter, lens and general mechanical wear.