skip to Main Content

Canon patent for new Cine lenses (CN-E 18-85mm f/2.8)

canon patent
CN-E 18-85mm f/2.8

Another Canon patent. This time we have a patent for a new Cine lens, CN-E 18-85mm f/2.8. The patent for the 18-85mm seems to share the same optical formula as the already released CN-E 15.5-47mm f/2.8 lens.

  • Patent Publication No. 2015-4917
    • Published 2015.1.8
    • Filing date 2013.6.24
  • Example 1
    • Zoom ratio 2.80
    • Focal length 16.00 29.68 44.80
    • F number 2.80
    • Half angle (in degrees) 43.15 26.81 18.51
    • Image height 15.00
    • Overall length of the lens 263.54
    • BF 39.04
  • Example 2
    • Zoom ratio 4.50
    • Focal length 18.50 45.61 83.25
    • F number 2.80
    • Half angle (in degrees) 39.04 18.20 10.21
    • Image height 15.00
    • Lens length 263.78 263.78 263.78
    • BF 46.93 46.93 46.93
  • Canon patents
    • 5-group zoom of positive and negative negative-positive-positive
    • Inner focus (part of the first group)
    • Inner zoom
CN-E 15.5-47mm f/2.8
CN-E 15.5-47mm f/2.8
Back To Top

Notice

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. If you want to know more or withdraw your consent to all or some of the cookies, please refer to the cookie policy.
By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to the use of cookies.