image by René Maly (Image rights)
It has a 38mm f/2.8 lens and focuses with a scale indication in meters and feet on the lens barrel.
This model has a simple yet effective exposure system. The little red button on the top activates the CdS cell which is coupled with the aperture ring and 2 LEDs, each on one side of the eyepiece. The left LED indicates underexposure, the right over exposure. By turning the aperture ring until both lights are on the photographer knows the exposure is correct.
Film sensitivity ranges from 25 to 400 ISO.
The EF35 works on 2 AA batteries.