New Patents: Canon RF 16-28mm F2.8, 15-28mm F2.8-4 IS & 15-28mm F4-5.6 IS Lenses

Posted on by

Canon has filed several new RF mount lens patents for the 16-28mm f/2.8, 15-28mm f/2.8-4 IS and 15-28mm f/4-5.6 IS Lenses, which are designed for Canon full-frame mirrorless cameras.

[Publication number] P2022063727
[Publication date] APRIL 22, 2022
[Patent application title] Optical system and imaging device

Canon RF 16-28mm f/2.8

Example 1

  • Focal length: 16.45-27.50
  • F value: 2.88
  • Half angle of view: 52.71-38.49
  • Image height: 19.00-21.64
  • Overall length: 134.57-119.35
  • Back focus: 14.07

Canon RF 15-28mm f/2.8-4 IS

Example 2

  • Focal length: 15.40-27.50
  • F value: 2.88-4.04
  • Half angle of view: 54.50-38.66
  • Image height: 19.00-21.64
  • Overall length: 114.50-110.87
  • Back focus: 14.15

Canon RF 15-28mm f/4-5.6 IS

Example 4

  • Focal length: 15.40-27.50
  • F value: 4.00-5.60
  • Half angle of view: 54.51-38.94
  • Image height: 19.00-21.64
  • Overall length: 103.50-103.50
  • Back focus: 14.20

Read more:

Via: Digicame-info