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Canon Patents 1000mm DO Lens

Canon Patents 1000mm DO Lens

Canon has patented a 1000mm f 5.6 DO lens. This is the second Canon Diffractive Optical lens patent to surface within the last month, so perhaps Canon have made some advancement in DO lens design that closes the gap in quality between DO lenses and their regular cousins. Check out the details below:

  • Patent publication: 2016-102852
  • Published on: 2016.6.2
  • Filing date: 2014.11.27
  • Zoom ratio: 1.00
  • Focal length: 950.00
  • F-number: 5.80
  • Angle of view: 1.30
  • Image height: 21.64
  • Overall length of the lens: 485.94
  • BF: 0.40
  • Diffractive optical element (first group)
  • Inner focus

Via: thenewcamera.

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