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Tuesday, May 24, 2016

Canon Patent - EF-M 15-50mm f/3.5-5.6 IS STM Lens

Canon EF-M mirrorless lens lineup

I have just returned from my Upper Amazon/Peruvian Highlands Photo Tour testing the Canon EOS-1D X Mark II camera in hot, steamy jungles and cold, two miles plus high, Andean mountains. Overall, I am quite impressed by the new body but now I have to take some time to get back to the daily routine, process the photos and get ready for my next trip to again test the camera in a whole new part of the world and environment.

Last month, I have reported on Canon's latest plans with their mirrorless camera line. Now, Egami has uncovered another new patent for an additional EF-M 15-50mm f/3.5-5.6 IS STM lens design. It may be announced before the year is up, perhaps together with the new mirrorless camera(s).

Patent Publication No. 2016-75742 (Google translated)

  • Published 2016.5.12
  • Filing date 2014.10.3
  • Zoom ratio 2.94
  • Focal length 16.00 27.43 47.04
  • F-number 3.62 4.50 5.82
  • Half angle of view (degrees) 37.55 26.47 16.19
  • Image height 12.30 13.66 13.66
  • Overall length of the lens 78.86 74.05 77.88
  • BF 20.48 27.14 37.06

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