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Canon Patent Application for fast full frame primes
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Canon Patent Application for fast full frame primes

Canon is applying for a patent application for a new 24mm 1.4, 50mm 1.2 and an 85mm 1.2 for increased chromatic aberration correction and improved field curvature.

focal length      24.47 
F number           1.45 
half angle (°)    41.48 
image height      21.64 
total length     135.70 
BF                38.40 

focal length      48.50 
F number           1.25 
Half angle        24.04 
Image height      21.64 
Lens length      157.48 
BF                38.50 

focal length      83.30 
F-number           1.24 
half angle (°)    14.56 
image height      21.64 
total length     140.49 
BF                37.40 


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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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