The Canon Model JS is simply a Model S with a slow speed dial. Photo courtesy of the Canon Museum.
The Model JS is a Model S to which a slow speed dial has been added. The slow dial has speeds 1,2,4,8,and 20th’s of a second. Their history is largely unknown and no production records have ever been found. Very few examples have survived.
Your camera would appear to be a Canon Model JS. It has the following distinguishing features:
- No Model Name on Camera
- Top Shutter Speed 1/500th
- Has a Slow Speed Dial
- No Viewfinder Lever
- No Rangefinder
Dates: 1941 up to as late as 1945
Produced: estimated 50
Ser. Nos.: 1900 thru 2130
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