Patents: RF 130mm f/1.4L, RF 135mm f/2L, RF 24mm f/1.4L USM Lenses

Canon recently has filed several new RF lens patents: RF 130mm f/1.4L, RF 135mm f/2L, and RF 24mm f/1.4L USM lenses. You can see the lens details below:

Canon RF 130mm f/1.4L USM

• Focal length: 131.00mm
• F-number: 1.41
• Angle of view: 9.38°
• Image height: 21.64mm
• Lens length: 182.28mm
• Backfocus: 13.87mm

The following optical design has a really strange backfocus distance of 54,12mm according to the patent literature.

Canon RF 135mm f/2L USM

• Focal length: 133.50mm
• F-number: 2.06
• Angle of view: 9.21°
• Image height: 21.64mm
• Lens length: 155.12mm
• Backfocus: 54.12mm

The following optical design also has an unusual backfocus distance.

Canon RF 24mm f/1.4L USM

• Focal length: 24.55mm
• F-nurnber: 1.45
• Angle of view: 41.39°
• Image height: 21.64mm
• Lens length: 119.13mm
• Backfocus: 38.01mm

via: CR