S Mount

Serenar 28mm f/3.5 I

Serenar 28mm f/3.5 I
Marketed October 1951
Original Price 27,000 yen
Lens Construction (group) 4
Lens Construction (element) 6
No. of Diaphragm Blades 6
Minimum Aperture 22
Closest Focusing Distance (m) 1
Maximum Magnification (x) --
Filter Diameter (mm) 34
Maximum Diameter x Length (mm) 48 x 18.5
Weight (g) 145

A Gauss type wide angle lens with 6 elements in 4 groups. This lens was the fastest wide angle lens in the world at the time. This lens was very popular because it was five times faster than Tessar 28mm f/8, made by Carl Zeiss, Germany. 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".