Chinon M42

35mm SLR system • Discontinued

A 35mm SLR system developed and manufactured by the Japanese company Chinon Industries Inc. based on the M42 screw mount with fully automatic aperture and TTL stop-down exposure metering.

Cameras in this system can be divided into two categories:

  • models with a mechanical shutter and manual exposure mode,
  • models with an electronically controlled shutter, aperture priority auto exposure mode and manual exposure mode.

Chinon produced these models under various names for other distributors of photographic equipment. Among such cameras, the most famous was the Alpa Si 2000, which was based on the Chinon CE II Memotron.

As for the lenses, Chinon did not produce them, but ordered from Tomioka and Tamron. Initially, Chinon lenses were produced with focusing rings covered with artificial leather, but later the rings received a rubberized coating with a square or diamond-shaped texture.

NOTE: Chinon instruction manuals mention the Auto Chinon 135/1.8 lens, which most likely was identical to the Spiratone 135mm F/1.8, and the Chinon 500/8 Mirror lens, which was identical to the Lentar 500/8 Mirror.

NOTE: Chinon 24/2.5, 28/2.8, 35/2.8, 50/1.7 Macro, Auto 55/1.4, 135/2.8, 200/3.5, 300/5.6, 40-105/3.5, 85-210/4.5 lenses were produced for the Alpa Si 2000 under the name Auto-Alpa Multi-Coated.

NOTE: The following Chinon lenses were mentioned in the Chinon instruction manuals: 50/2.8, Auto 300/4.5, Auto 55-300/4.5, Auto 70-230/4.5, Auto 75-205/3.8, but we cannot record them in the database because we do not have basic manufacturer data for them.

In addition to lenses, various accessories such as angle finder, cable release, flash unit, power winder, remote control unit, auto-extension ring, bellows, copy stand and table tripod were also available.

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