Cosina CSL

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This SLR from Cosina circa 1977 accepts 42mm screw mount lenses. It has an electronically-timed shutter ranging from 1/1000 to 4 seconds, but without power from a pair of 1.5 volt silver-oxide batteries only the mechanical "M" setting of 1/50th second will operate. Flash sync is at 1/60th of a second or below.

A half-press on the shutter release stops down the lens for metering, with over/correct/under indicated with LEDs at the top of the viewfinder. This is the only availabe check that battery voltage is sufficient. The lens can be reopened to its brightest aperture again with a button on the camera front. The rewind release button is tucked alongside the wind lever rather than on the baseplate of the camera.

Above the conventional X sync PC socket is one marked A, intended for communication with Cosina's clunky AEC adapter which physically twists the shutter-speed dial with its own motor, enabling aperture-priority autoexposure.

Links

• Cosina CSL manual (PDF), also including the AEC adapter, from Mike Butkus' OrphanCameras.com
• Multiple views of the CSL from [ https://www.flickr.com/photos/sample-image/ Sample - Image.com on Flickr]