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300mm Archives - Canon Rumors

Canon Lens RumorsCanon Patents

EF 300 f/4L IS II Patent

  • Canon Rumors
  • Posted onFeb 14, 2011 at 5:00 PM
  • 0 Comments

A patent for a 300 f/4L IS II has been filed in Japan. Remember, patents don’t always become real products. Patent Publication No. 2011-27864 published Read more…

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