Canon FD-L Optic 1.2
SET:
24mm FDL f 1.4
35mm FDS.S.C. f 1.2
50mm FDL f 1.2
85mm FDL f 1.2
100mm FD f 2.0
135mm FD f 2.0
The Canon FD 55mm f1.2 introduced in 1971 can truly be considered the first of the modern high-speed lenses as it combined the essential features:
Modern optical design with mirror reflex clearance.
Aspherical surface to control spherical aberration.
Multi-layer anti reflective coatings.
Double-Gauss design with 8 elements in 6 groups.
It is believed that the canon k35 lenses are derived from this high-speed Canon FD-l lenses. This makes sense as the cost of designing complex high-speed lenses with aspherical elements would not have been cost effective.
FD 24mm f1.4 L = K35 24mm T1.6
FD 55mm f1.2 L = K35 55mm T1.4
FD 85mm f1.2 L = K35 85mm T1.4