Olympus's compact 35-series automatic — 42mm lens, zone focus, CdS auto exposure, leaf shutter, 1970.
The Olympus 35 EC was released around 1970 as a small automatic model in the 35-series of fixed-lens compacts. It was a compact, simple camera aimed at everyday users, using automatic exposure and a scale or zone focusing system rather than the coupled rangefinder of the higher models, and it was among the smaller cameras Olympus offered in the line.
The 35 EC is a fixed-lens 35mm compact with a lens of around 42mm and a leaf shutter. Exposure is automatic, controlled by a CdS meter, and focusing is by scale or zone estimation. The meter was designed around a mercury cell of about 1.35 volts, so the voltage difference of modern replacement batteries should be considered when returning the camera to use to keep exposures accurate.
In use the 35 EC suits a photographer who wants a small automatic camera for travel and casual photography without the size or cost of a rangefinder model. The automatic exposure keeps operation simple, while the zone-focus system asks the user to judge distance, which suits snapshot use in good light more than precise focusing on close subjects.
When buying, confirm the zone-focus setting moves correctly and the leaf shutter fires at all speeds. Test the CdS meter and remember it was designed for a 1.35V mercury cell, so an adapter or zinc-air cell may be needed for accuracy, and because exposure is automatic a dead meter limits use. Inspect the lens for haze and fungus, check the light seals, and look for sticky aperture blades and battery-door corrosion.