Olympus's compact 35-series rangefinder — 42mm lens, coupled rangefinder, CdS auto exposure, 1972.
The Olympus 35 ECR was released in the early 1970s as a development of the compact 35 EC in the 35-series of fixed-lens cameras. The added R in its name reflects the inclusion of a rangefinder, giving the small automatic body coupled-rangefinder focusing that the plain EC lacked, while keeping the compact size and automatic exposure of that model.
The 35 ECR is a fixed-lens 35mm coupled-rangefinder camera with a lens of around 42mm and a leaf shutter. It offers automatic exposure controlled by a CdS meter and adds a coupled rangefinder for accurate focusing. The meter was designed around a mercury cell of about 1.35 volts, so the voltage of modern replacement batteries should be taken into account for accurate exposure readings.
In use the 35 ECR suits a photographer who wants a small automatic camera with precise focusing for travel, street and general photography. The coupled rangefinder gives it an advantage over the zone-focus EC for close or critical subjects, while the automatic exposure keeps the camera quick to use, making it a compact but capable choice within the range.
When buying, check the rangefinder patch contrast and alignment and confirm the leaf shutter fires at all speeds. Test the CdS meter, noting it was designed for a 1.35V mercury cell so an adapter or zinc-air cell may be needed, and since exposure is automatic a failed meter limits use. Inspect the lens for haze and fungus, check the light seals, and look for sticky aperture blades and battery-door corrosion.