New Patents: Canon 500 and 600mm Diffractive Optics

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canon 500mm patent

Here is the patent application showing a yet-another-diffractive-optics patent application, featuring 500mm and 600mm lenses.

US Patent Application 20180373004

Example 1:

  • Focal Length: 487.49mm
  • F-Number: 4.12
  • Half angle of view: 2.54º
  • Image height: 21.64mm
  • Total lens length: 409.74mm
  • Backfocus: 98.42mm

Example 2:

  • Focal Length: 584.99mm
  • F-Number: 4.12
  • Half angle of view: 2.12º
  • Image height: 21.64mm
  • Total lens length: 474.74mm
  • Backfocus: 109.42mm

Read more Canon Lens Rumors

See also 2018 Holiday Canon Lens Deals

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