Canon RF 8-15mm f/4 fisheye zoom patent exposure

  This article is from Seying Wuji

   A new patent application from Canon Inc. indicates that the company may be interested in the EOS R system.

Canon RF 8-15mm f/4 fisheye zoom patent exposure

   Canon patent application 2020-166234A, which discusses RF 8- The optical design of the 15mm f/4 fisheye lens. The lens appears to be a mirrorless version of the EF 8-15mm f/4 fisheye lens.

  Zoom ratio: 1.85

   Focal length: 8.10 12.51 15.01mm

  F value: 4.10 4.10 4.10

   half angle of view: 90.14 90.45 90.39

  Image height: 11.50 18.00 21.60mm

  Lens length: 123.74 111.21 109.67 mm

  Back focal length: 11.78 20.27 24.66mm

  CW I think this lens will be put on the market sooner or later. By the way, this is not the first patent for the EOS R system fisheye lens.

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