New Patent: Canon 400mm F/5.6 MIRROR (Catadioptric) Lens

Canon 400mm F5.6 mirror lens patentGood News!!! According to the latest rumors from NI,Canon has just filed a new patent: Canon 400mm F/5.6 MIRROR (Catadioptric) Lens.

Specification from the patent:

  • Focal length: 400mm
  • Aperture: f/5.6
  • 2 ω: 1.96
  • Image height: 13.66mm
  • Back focus: 33.07mm
  • Lens length: 247.73mm

Read More Canon Lens Patent

See Also 2017 Holiday Canon Lens Deals

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