Olympus's zone-focus half-frame Pen EES-2 — 30mm f/2.8, selenium auto-exposure, hot shoe, 1968.
The Olympus Pen EES-2 was a half-frame viewfinder camera by Olympus, released in 1968 as the updated zone-focus companion to the Pen EE-2 within the Pen family that Yoshihisa Maitani began in 1959. It paired the selenium auto-exposure system of the EE-2 with the three-zone focusing of the EES, and it had a long production life alongside the fixed-focus EE-2.
As a half-frame camera it exposes two 18x24mm frames in each 24x36mm section of 35mm film, giving roughly 72 shots from a 36-exposure roll. It uses a fixed 30mm f/2.8 D.Zuiko lens with three-zone scale focusing, and a selenium meter around the lens for battery-free automatic exposure. The EES-2 shares the EE-2's wider film-speed range and accessory shoe, and its leaf shutter is metered-selected with a red under-exposure flag in the finder. The lens is fixed.
The EES-2 offers simple automatic exposure with the added flexibility of zone focus, suiting travel and casual street photography where quick handling and a high frame count are useful. The compact body and quiet shutter make it easy to carry every day, while the zone scale helps with nearer subjects that fixed-focus models cannot address as well.
When buying, prioritise testing the selenium meter, since it drives the auto exposure and the cells commonly lose sensitivity or die with age and cannot be replaced by a battery. Confirm the meter responds and the shutter fires, check the zone-focus setting ring, inspect the lens for haze and fungus, and look over the light seals, finder and low-light warning flag for age-related faults.
