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Canon RF 24-80mm f/4L IS USM Lens Patent

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Canon has filed a new patent in Japan. The application is for RF 24-80mm f/4L IS USM lens designed for Canon full frame mirrorless camera system.  This lens is another kit alternative for the next EOS R full frame mirrorless cameras.

EOS R is the first camera to feature the RF lens mount with a 12-pin connection, flange back distance of 20mm and a wide 54mm mount diameter enabling even greater flexibility in lens design.  The first four Canon RF lenses are the , , , . All four lenses have customizable control rings.

In this patent, Canon shows an optical formula for a RF 24-80mm f/4L IS USM. Check it out!

Canon Patent for RF 24-80mm f/4L IS USM Lens

Canon RF 24-80mm f/4L IS USM Lens Patent

Canon RF 24-80mm f/4L IS

  • Focal length 24.72 48.09 82.45
  • F number 4.12 4.12 4.12
  • Half angle of view 41.19 24.22 14.70
  • Image height 21.64 21.64 21.64
  • Lens overall length 119.50 134.52 149.55
  • BF 13.50 18.71 22.73

Canon RF 24-105mm f/4L IS

  • Focal distance 24.72 63.46 131.00
  • F number 4.12 4.12 4.12
  • half field angle (degree) — 41.19 18.83 9.38
  • Image height 21.64 21.64 21.64
  • length of the lens 137.50 168.92 200.33
  • BF 13.50 24.03 28.27

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