Canon Patents

Patent: Canon EF 24-300mm f/4-5.6

We’ve posted recently that Canon has been working on a new superzoom lens, and sure enough a patent for an EF 24-300 f/4-5.6 has appeared.

Patent Publication No. 2015-200870 (Google Translated)

  • Published 2015.11.12
  • Filing date 2014.3.31
  • Example 1
  • Zoom ratio 12.14
  • Focal length 24.30 99.98 294.95
  • F-number 4.10 5.76 5.88
  • Half angle (in degrees) 41.68 12.21 4.20
  • Image height 21.64
  • Overall length of the lens 197.38 245.98 298.53
  • BF 38.90 91.95 92.55

Comments are closed.