Canon RF-S 18-45mm f/4.5-6.3 Lens Patent

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Canon has filed a new lens patent for the RF-S 18-45mm f/4.5-6.3 Lens for APS-C mirrorless cameras. See the patent details below.

[Publication number] JP 2021-162822 (P2021-162822A)
[Publication date] October 11, 2021
[Patent application title] Optical system and imaging device

Embodiment 1

  • Focal length: 18.53-43.65
  • F value: 4.54-6.50
  • Half angle of view: 33.78-17.38
  • Image height: 12.40-13.66
  • Overall length: 92.00-83.05
  • Back focus: 30.20-51.20

Embodiment 2

  • Focal length: 20.01-43.64
  • F value: 4.60-6.50
  • Half angle of view: 31.79-17.38
  • Image height: 12.40-13.66
  • Overall length: 90.65-80.61
  • Back focus: 32.94-50.55

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Via: Asobinet