According to Canon Camera Museum: “The trial production of this lens started in 1941. Canon Inc. started as "Seiki Kogaku (Precision mechanics and optics)". This was the first interchangeable lens for Seiki Kogaku and it was advertised in the May 1947 issue of the monthly magazine "Kouga". The focus control system is not coupled to the rangefinder and focus is decided by guess. The original standard bayonet mount was changed to the S mount, before it was marketed as the first interchangeable lens for Seiki Kogaku. This series of lenses were named "Serenar" by a Canon employee in an in-house naming contest. The word "Serenar" was coined from "Serene", the name of the sea on the moon (the Sea of Serenity) and an adjective meaning of "tranquil".
|Marketed||March 1948 October 2012|
|Original Price||23,320 yen (~ $ 80 US ) $199|
|Lens Construction (group)||3|
|Lens Construction (element)||4|
|No. of Diaphragm Blades||--|
|Closest Focusing Distance (m)||1.52|
|Maximum Magnifcation (x)||--|
|Filter Diameter (mm)||40|
|Maximum Diameter x Length (mm)||--|
|Weight (g)||580 (!!!)|
Looks cool with X-Pro 1!
@ f 4, the image is soft with heavy purple fringing.
@ f 8, a bit better
@ f 8 and Photoshop ("quick and dirty")
If the lens is stopped down and with a little help of modern tools like Lightroom, Photoshop, etc you can get some pretty decent results but nowhere close to modern lenses.
Bottom line: very solid, heavy, well made collectible item.