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Canon patent for EF-M 55-300mm f/4.5-6.3 DO IS lens for EOS M system

JPA_427232674_000002

A long awaited super-zoom lens for the EOS M system with better optics might soon be reality. Canon filed a patent for a  EF-M 55-300mm f/4.5-6.3 DO IS lens, featuring diffractive optics and image stabilisation. Canon already has a telephoto lens for the EOS M, the Canon EF-M 55-200mm F4.5-6.3 IS STM

Such a lens would be a welcome addition to the small lens line-up currently available for the EOS M system. Canon filed other patents for telephoto lenses for the EOS-M system. However, this patent might refer to a a product that could hit the market. If it does, then the price is the what I would like to know first. Optics with DO elements are usually not cheap.

  • Patent Publication No. 2015-232674
    • Published 2015.12.24
    • Filing date 2014.6.11
  • Example 1
    • Zoom ratio 5.27
    • Focal length 55.04 135.00 290.01
    • F-number 4.60 5.18 6.30
    • Angle of view 13.94 5.78 2.70
    • Image height 13.66 13.66 13.66
    • Overall length of the lens 136.00 175.46 192.00
    • BF 35.50 35.50 35.50
[via Egami]
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