Patent of Canon CN-E 35-260mm f/2.8 L S Soft Focus Lens

Canon 35-260 f2.8 patent

Patent of Canon CN-E 35-260mm f/2.8 L S Soft Focus Lens

Canon has just filed a new patent of zoom cinema lens :Canon CN-E 35-260mm f/2.8 L S Soft Focus.

Patent Publication No. 2014-235203 (Google Translated)

  • Published 2014.12.15
  • Filing date 2013.5.31

Example 3

  • Zoom ratio 7.50
  • The focal length f = 34.00-68.00-102.00-136.00-254.99mm
  • Fno. 2.70
  • Half angle ω = 24.58-12.88-8.67-6.52-3.49 °
  • Image height Y = 15.55mm
  • Overall length of the lens 441.54mm
  • BF 51.02mm

Source: EG

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