Canon patent for two new Cine lenses, CN-E 20-100mm f/2.8 and 20-130mm f/2.8-3.5

We reported about a Canon patent for a Cine lens a few days ago. Today we have another patent for two more Cine lenses. Canon’s Cine lenses are professional tools that go up to $40,000.

• Patent Publication No. 2015-18083
  • Published 2015.1.29
  • Filing date 2013.7.10
• Example 1
  • Zoom ratio 6.00
  • Focal length 21.00 87.93 125.94
  • F number 2.77 2.77 3.66
  • Half angle of 35.54 9.68 6.79
  • Image height 15.00
  • Overall length of the lens 314.76
  • BF 50.03
• Example 2
  • Zoom ratio 5.00
  • Focal length 20.00 69.46 100.00
  • F number 2.76 2.77 2.77
  • Half angle of 36.50 12.03 8.42
  • Image height 14.80
  • Overall length of the lens 294.44
  • BF 50.07
• Canon patents
  • Positive and negative positive and negative positive five-group zoom
  • Inner focus (part of the first group)
  • Inner zoom

[via Egami]