New Patents: Canon RF 16-40, 14-40mm F4.0 UWA Zooms

Canon lens patents

Canon has just filed two new patents for two focal zoom lens: RF 14-40 and RF 16-40.  Both of these lenses are constant F4.0

Examples of the embodiments include;

  • Focal distance                14.43     21.62    40.74
  • F number                         4.12       4.12       4.12
  • Half field angle                56.30     45.01    27.97
  • Image height                   21.64     21.64    21.64
  • Whole length of the lens 138.31  128.15  129.29
  • BF                                    12.84    12.84    12.84
  • Focal distance                     16.41   23.12   38.80
  • F number                             4.12      4.12     4.12
  • Half field angle                    52.82    43.10   29.14
  • Image height                       21.64    21.64   21.64
  • Whole length of the lens    118.88  112.53   114.89
  • BF                                       12.78   1 2.78    12.78

Japan Patent Application 2019-066653

Read More Canon Lens Patent

See also 2019 Canon Lens Deals

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