![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjwnivQZcmieWDWEGRVRVBv17pLYCwvmNls9olhuFgUow39dyCDmb7g4ih6YliaMj5QMylOEnt15VI1r84cO1Qt1FsUzTfn3OsfADAra30-IHtHc1ZRhAOYnJzCbXMu6jN1S3uVwQ40aeU/s320/MAY_2728.gif)
More than 100.000 of the
Great Wall SZ-1 rangefinder cameras with spring motor film advance were made from 1969 to 1977 by the
Beijing Camera Factory. The camera had a coated f=45mm 1:2.8 lens, focusable from 0.9m to infinity aided by the
coupled rangefinder. The rangefinder's split image was superimposed to the viewfinder image. Its PC
flash synchronized
shutter allowed speeds from 1/30 to 1/300 sec. plus B mode. The first
two digits of the body's serial number indicate the year of production.
After some use the cameras needed a lot of awfully complicated repair
and maintenance. Thus the model was replaced in 1979 by the sturdier
Great Wall SZ-2. The SZ-1 itself was preceded by a dozen hand-made
similar cameras under the name
Beijing SZ-1 which were decorated with political slogans like
Long Life To Chairman Mao. The government didn't allow to produce further cameras under the name
Beijing to avoid conflicts with the proud Shanghai camera makers. The camera construction was derived from a design of
Ricoh.
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