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Canon Patent Application: Canon RF 14-28mm F2.0
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Canon Patent Application: Canon RF 14-28mm F2.0

With all the posts on the 1DX Mark III (and I still haven't caught up with that), we haven't forgotten that it's patent Thursday, and do we have a great one for you today. Here is a patent application for a pretty awesome astro lens (to go with that EOS Ra that you are dying to buy).

Lens details;

Focal length 14.42 19.78 27.16
F-number 2.06 2.06 2.06
Half angle of view 56.32 47.56 38.54
Image height 21.64 21.64 21.64
Total lens length 164.32 150.29 146.47 
BF 16.13 16.13 16.13

Could this be the sign of the second zoom F2.0 lens to match the 28-70mm F2.0? (Dont' count on a 70-200 F2.0 any decade soon though to complete the trinity).

US Patent Application 20190324229

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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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