Canon Patent F2.8 10-120mm Lens for Cinema Compact Camera

Latest patent surfaced over the web that shows a constant aperture zoom lens for 1 inch sensor camera.Tt’s a big achievement for Canon for achieving constant F2.8 aperture through-out the zoom range since till date no Canon compact camera have a constant aperture based high quality Zoom lens,. Take a look at details of the patent below…

Explanation and self-interpretation of the patent literature

• Patent Publication No. 2015-75523
  • Published 2015.4.20
  • Filing date 2013.10.7
• Example 1
  • Zoom ratio 11.54
  • Focal length 10.21 56.31 117.88
  • F number 1.87 1.79 1.78
  • Half angle (in degrees) 38.07 8.09 3.88
  • Image height 8.00
  • Overall length of the lens 555.0
  • BF 16.56
• Canon patents
  • 5-group zoom of positive and negative TadashiTadashiTadashi
  • Inner focus (part of the first group)
  • Inner zoom

Canon Compact Cinema 4K Lens
We expect that the upcoming lens will be used in the next version XC10 camera, probably XC20 or CX10 Mark II camera. The camera will arrive sometime in in late 2016 or in early 2017.

The recently announced Canon XC10 features 10x Zoom / 8.9 to 89mm Focal Length with f/2.8 to 5.6 aperture range. Amazon.com | B&H.com

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