More optical formulas for large aperture RF mount prime lenses have appeared. This new patent showcases some RF mount prime lenses that utilize Defocus Smoothing, which first appeared in the RF 85mm f/1.2L USM DS.
Canon RF 24mm f/1.4L USM DS
Focal length: 24.55mm
F-Number: 1.45
Half angle of view: 41.39°
Image height: 21.64mm
Overall length: 119.13mm
BF: 38.01mm
Canon RF 50mm f/1.4L USM DS
Focal length: 52.13mm
F-Number: 1.45
Half angle of view: 22.54°
Image height: 21.64mm
Overall length: 85.51mm
BF: 37.71mm
Canon RF 135mm f/1.4L USM DS
Focal length: 131.00mm
F-Number: 1.41
Half angle of view: 9.38°
Image height: 21.64mm
Overall length: 182.28mm
Back focus: 13.87mm
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