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|Maximum format:||35mm full frame|
|Diagonal angle of view:||46.8° (35mm full frame)|
|Lens construction:||7 elements in 5 groups|
|Number of blades:||10|
|Closest focusing distance:||100 cm|
|Maximum diameter x Length:||Ø79 x 47.8 mm|
|Filter size:||72 mm|
Design and Features
This lens is developed as one of the standard lenses for the Canon 7 rangefinder camera. It had the largest aperture in the world for photographic lenses available in the market at the time. It attracts a great deal of attention as a "dream lens", as it is four times faster than the human eye. The lens mount is clip-on, 3-lug bayonet system like the Mirror Box II (cameras have S mount inside bayonet mount). The edge of the rearmost lens element is cut off to avoid friction with interlocking roller of range finder mechanism. It is Gauss type lens with 7 elements in 5 groups.
Alternatives (MF, 44..56 mm)
|Canon 50mm F/1.2||1956||⊗|