Patent: Canon EF 28-560mm f/2.8-5.6L USM

Craig Blair
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A patent showing another crazy superzoom has appeared, this time the optical  formula is for an EF  28-560mm f/2.8-5.6L USM. We'd  assume such a lens would also have IS if it ever came to market. We expected to see a non-L superzoom sometime in 2016, but that has apparently been put off until late 2017 at the earliest.

Patent Publication No. 2016-142795

  • Published 2016.8.8
  • Filing date 2015.1.30
  • Zoom ratio 18.86
  • Focal length 28.80 119.57 543.20
  • F-number 2.88 4.56 5.88
  • Half angle of view (degrees) 36.91 10.26 2.28
  • Image height 21.64 21.64 21.64
  • The total lens length 281.07 331.07 385.01
  • BF 53.05 61.31 40.00
  • The effective diameter of the front lens 120.00

I'm not sure this is a superzoom we're likely to see, but all indications point to Canon definitely developing a replacement for the EF 28-300mm f/3.5-5.6L IS.

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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