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Canon patent for 200-600mm f/4.5-5.6 superzoom for full-frame DSLRs

 

Canon patent
200-600mm f/4.5-5.6

Canon patent for a superzoom lens for full-frame DSLRs, an EF 200-600mm f/4.5-5.6 lens.

As always with patents, you can’t be sure if the described product will hit the market. However, the optical formula in the patent reminds the Sigma 150-600mm F5-6.3 DG OS HSM lens, and given how well the latest Sigma lenses perform (given the price), I wouldn’t be suprised if Canon decides to strike back. I think such a lens would be welcome by the community.

  • Patent Publication No. 2015-212724
    • Published 2015.11.26
    • Filing date 2014.5.1
  • Example 1
    • Zoom ratio 3.00
    • Focal length 200.00 340.00 600.00
    • F-number 4.60 4.60 5.20
    • Angle of view 6.18 3.64 2.07
    • Image height 21.65 21.65 21.65
    • Overall length of the lens 355.16 355.16 355.16
    • BF 65.16 65.16 65.16
Canon patent
200-600mm f/4.5-5.6 performance, left wide end, right telephoto end
[via Egami]

 

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