The Canon rangefinders of the late 1940s and early 1950s are Leica-compatible screw-mount cameras.

Some models are flash synchronized, using Canon's side-rail synch contacts.

Unlike many Leica copies, quality control and finish are fully up to Leitz standards.

The noticeable difference between The Canon and other LTM (leica thread mount) rangefinders is the angled cornered casing.

This article was originally based on "Canon II/III/IV" in Camerapedia, retrieved at an unknown date under the GNU Free Documentation License.