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Canon Patent Application: Canon applies for a mirrorless full frame 2.0 zoom
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Canon Patent Application: Canon applies for a mirrorless full frame 2.0 zoom

Today we have found a patent application for a rather unusual zoom lens.  Given the short backfocus and the image height, these lens embodiments would have to be for a full frame mirrorless camera with a short back focus.

Focal distance      90.00 125.01 145.99 109.96 130.49 
F number             2.06   2.06   2.06   2.06   2.06 
a half field angle  13.52   9.82   8.43  11.13   9.41 
Image height        21.64  21.64  21.64  21.64  21.64 
Whole length       242.35 242.35 242.35 242.35 242.35 
BF                  16.70  16.70  16.70  16.70  16.70 

Focal distance      72.03 115.04 145.99  92.39 123.70 
F number             2.06   2.06   2.06   2.06   2.06 
a half field angle  16.72  10.65   8.43  13.18   9.92 
Image height        21.64  21.64  21.64  21.64  21.64 
Whole length       217.72 217.72 217.72 217.72 217.72 
BF                  22.47 2 2.47  22.47  22.47  22.47 

Focal distance      72.00 114.84 146.00  92.60 123.41 
F number             2.06   2.06   2.06   2.06   2.06 
a half field angle  16.72  10.67   8.43  13.15   9.94 
Image height        21.64   21.64  21.64 21.64  21.64 
Whole length       210.32 210.32 210.32 210.32 210.32 
BF                  21.80  21.80 21.80   21.80  21.80 

Japan Patent Application 2018-132675

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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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