An online guide to collectable cameras and related stuff
Canon 100/3.5 R
The 100/3.5 Canon R was offered as a less expensive alternative to the 100/2. Aside from being
slower, it also has a manual diphragm. It is a five element, four group construction stopping down to
f/22. It uses 40mm filters. It was produced in two versions (according to the Canon Museum website),
but it is unclear what the differences are. The fist version was released in May 1961 and the second in
The price in March 1962 was $97.50.