Sigma Files Patent for 120-600mm f/5-6.3 Lens

According to the Egami Blog, Sigma has filed a patent for a 120-600mm f/5-6.3 optical design which could indicate that the current 150-600mm Sports and/or Contemporary models may receive an even larger focal range when replaced.

Description of Patent

Patent Publication No. 2015-203827

  • Published 2015.11.16
  • Filing date 2014.4.16

Example:

  • Zoom ratio 4.66
  • Focal length 125.15 250.18 583.80
  • F number 4.86 5.84 6.50
  • Total angle of view 2? 19.47 9.76 4.18
  • The image height Y 21.63
  • Overall length of the lens 314.20 371.31 424.96

Posted: 1/11/2016 5:25:47 AM ET   Posted By: Sean
Posted to: Canon News, Sony News    Category: Camera and Lens Patents
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