Patents: Canon RF 100-400mm f/3.5-5.6L IS, RF 70-300mm f/4-5.6 IS and RF 50-250mm f/4-5.6 IS

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Canon has filed several new RF mount telephoto zoom lens patents in Japan, including the Canon RF 100-400mm f/3.5-5.6L IS USM lens.

Japan Patent Application 2019-020679

Canon RF 100-400mm f/3.5-5.6L IS USM

  • Focal distance 102.21 195.97 389.86 ​
  • F number 3.83 4.93 5.85
  • Half angle of view (degree) 11.95 6.30 3.18
  • Image height 21.64 21.64 21.64
  • Lens total length 204.85 250.29 291.30
  • BF 4.31 31.68 97.49

Canon RF 70-300mm f/4-5.6 IS

  • Focal distance 68.25 126.36 288.22
  • F number 4.16 4.68 5.83
  • a half field angle (degree) — 17.59 9.72 4.29
  • Image height 21.64 21.64 21.64
  • Whole length of the lens 168.24 189.04 207.81
  • BF 12.70 30.65 79.58 ​

Canon RF 50-250mm f/4-5.6 IS

  • Focal distance 51.80 126.89 241.22
  • F number 4.04 5.18 5.77
  • a half field angle (degree) — 22.67 9.68 5.13
  • Image height 21.64 21.64 21.64
  • Whole length of the lens 136.91 175.70 210.70
  • BF 11.36 30.93 42.48

Canon EOS R body: $2,299 at Amazon, B&H, Adorama.

Canon Mount Adapter EF-EOS R: $99 at Amazon, B&H, Adorama.

Canon EOS R on Facebook: Canon EOS R Page, Canon EOS R Group

Via: CanonRumors