Cosina CSR

image by Rich1078346 (Image rights)

The CSR is an electronic-shutter SLR from Cosina introduced in about 1976. It accepts lenses with the standard M42 thread mount. The CSR is distinguished from its near-twin the CSL by allowing the user to switch between averaging and spot metering (in this, it resembles a Mamiya/Sekor DTL model). The CSR was made in both black and silver versions.

The electronically-timed shutter ranges from 1/1000 to 4 seconds, with flash sync at 1/60th or slower; but without power from two 1.5 volt silver-oxide batteries, only a mechanical "M" speed of 1/50 second will function. There is an electronic self-timer with a small LED which blinks during countdown. A tab alongside the wind lever allows for multiple exposures.

The most notable (and heroically misguided) feature offered with Cosina's "CS" SLRs was the optional AEC adapter box which attaches to the top and provides autoexposure via motorized rotation of the shutter speed dial.

The same camera was sold in other markets under Vivitar branding, as the XC-2.

Links

• Cosina CSR manual, also including the AEC adapter, from Mike Butkus' OrphanCameras.com