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Canon Patent for EF-M 600mm f/5.6 DO IS Lens

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Egami has discovered a new patent filed by Canon. The new patent describes a EF-M 600mm f/5.6 DO IS lens designed for EOS M mirrorless cameras with APS-C-sized image sensors.

A super-telephoto prime lens in a patent also means that the company has future plans for a high-end APS-C model as this kind of lens is aimed at professional photographers.

The Canon EF-M 600mm f/5.6 DO IS lens will have built-in image stabilization technology as we can see it from the name. Also “DO” designation stands for diffractive optical elements.

Canon lenses which feature the diffractive optical (DO) are smaller and lighter compared to the same focal length lenses but the price becomes generally higher when the lenses have optical formual for DO.

Canon EF-M 600mm f/5.6 DO IS Lens Patent

canon-patent-for-ef-m-600mm-f5-6-do-is-lens

  • Patent Publication No. 2015-215437
    • Published 2015.12.3
    • Filing date 2014.5.9
  • Example
    • Focal length 585.00
    • F-number 5.74
    • Half angle (in degrees) 1.34
    • Image height 13.66
    • Overall length of the lens 299.25

via Egami