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