Talk about advancements...This is a pretty cool camera...It's where I learned how to buy the appropriate film (ASA 100), how to manipulate distance, shutter speed and among other things like the timer and the works...Summer of '85 was the year when i first tinkered this cam...
The Yashica Electro 35 GSN is a coupled-rangefinder, leaf-shuttered 35mm camera with aperture-priority automatic exposure. It was released in 1973 (the year I was born, btw) by Yashica. The serial number of our body is #H1423625. The lens is a Color-Yashinon DX 1:1.7 f=45mm lens made in Japan. The lens on the camera really sparkles and is excellent in low-light. The series added the new Copal-Electro shutter, which was electromagnetically controlled. The Copal leaf shutter is entirely stepless from 1/500 to about 30 seconds. The camera is aperture-priority -- that is, you set the aperture from f/1.7 to f/16 and the camera will choose the shutter speed from 1/500 sec to 30 seconds automatically for you. It does not use through-the-lens (TTL) metering, the CdS cell is located to the right of the rangefinder, but it still does a great job.
Because it's a leaf shutter (the shutter diaphragm is located inside the lens unit rather than at the rear of the camera), the Yashica has all the benefits of leaf shutters:
- Very quiet. The Yashica gives only an inaudible "click." because the shutter timer is electromechanical, there is no whirring during long (> 1 sec.) exposures. Just a near silent click as the diaphragm opens and then a second one when it closes.
- Very stable. Diaphragm shutters have much less inertial mass than a focal plane shutter. And with leaf shutters, the inertial mass is centripetal, so it has no net effect on the entire camera body, thus transferring very little vibration to the camera. With a focal plane shutter, the intertial movement is unilinear and (think Newton's Law) it causes the camera to jerk slightly sideways (horizontal shutter) or vertically (vertical travel shutter).
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