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A bunch of Mirrorless lenses in this patent application
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A bunch of Mirrorless lenses in this patent application

It's always interesting to see what Canon is at least thinking is patentable as far as optical designs, and it always gives us some hints about what they may be working on in the future.

This patent has a slew of slower APS-C zooms, and an intriguing full frame mirrorless prime.

  • 18-50mm 3.5-7.1
  • 11-22mm 4.0-5.6
  • 9-18mm 4.0-5.6
  • 15-70mm 2.8-5.0

The curious one of the list is this:

  • 10mm 2.8 full frame

All the embodiments have short back focus and APS-C (or the one full frame) image heights.  While I can't see many of them making to production, I'd certainly like to see the 9-18 in the same vien as the 11-22mm.

See the patent here US Patent Application 20170293120

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How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

  1. Go to the Japan Patent Office search page.
  2. If it's a patent application (they are usually in the format of Year-Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
  3. Click on search.
  4. Then click on the patent application number link, and there's the patent application!

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