Yashica Electro 35: The Yashica Electro Rangefinder Cameras in their various forms were made from 1966 to 1977 with sales of new stock continuing until around 1980. It was a somewhat revolutionary camera, relatively inexpensive at around $100.00 and marketed as an easy to use consumer grade camera. But despite this it was exceptionally well made with an excellent light metering system and sharp 45mm F1.7 lens. Around 15 million were made. It’s an Aperture priority camera, the operator picks the aperture and the camera the corresponding shutter speed which is stepless & can be anything between 30s and 1/500th. Orange & red lights guide the user between over & under exposure, it’s a simple but very effective system. As the name Electro would imply it needs power and is pretty much useless without it. Even the flash Sync Speed of 1/30th & Bulb won't work without power.

Without power the shutter will only fire at 1/500th so theoretically it could still be used if loaded with 400 speed film and shot using sunny 16 rules. This version, the GSN (& the black GTN) were the last to be made between 1973 & 1977. They were designed to use a PX32A 5.6V Mercury battery which is no longer made but there are several other options using modern 6V batteries and the light meter will still work correctly.