New Patent: Canon EF 800MM F5.6L IS II Lens

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Canon has just filed a new patent application for Canon EF 800mm F5.6L IS II lens. This new patent will help to reduce weight, size while maintaining a high degree of optical performance and low chromatic aberrations.

For example:

  • Focal distance 780.00
  • F number 5.80
  • a half field angle (degree) — 1.59
  • Image height 21.64 whole length of the lens 485.85
  • BF 128.77
  • Japan Patent Application 2018-087965

Read More Canon Lens Patent

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