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Canon Patent Application: APS-C mirrorless kit lenses
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Canon Patent Application: APS-C mirrorless kit lenses

Let the debates start on whether or not this is for the EF-M mount or the EF-M mount. I will suggest that most of these are for the 18mm EF-M mount, as they get quite close to the sensor with their BF distance, and that's just easier to do with the EF-M mount than it is the RF mount.


focal length 17.00 45.29 130.97
F number 3.71 5.63 6.30
half angle of view (degree) 38.78 16.78 5.95
image height 13.66 13.66 13.66
total lens length 88.79 109.43 136.79
BF Air) 9.50 32.69 41.15

focal length 17.00 48.75 130.97
F number 3.59 6.05 6.30
Half angle of view 38.78 15.65 5.95
Image height 13.66 13.66 13.66
Lens total length 93.09 114.59 143.09
BF 11.62 39.19 46.30

focal length 18.45 46.95 80.00
F number 3.25 4.48 5.60
Half angle of view 36.52 16.22 9.69
Image height 13.66 13.66 13.66
Lens total length 98.76 113.68 139.63
BF 9.45 9.45 9.45

focal length 17.00 44.95 130.97
F number 3.88 5.96 6.30
half angle of view (degree) 38.78 16.90 5.95
image height 13.66 13.66 13.66
total lens length 88.59 109.18 136.47
BF 11.16 34.60 41.37

focal length 18.14 30.19 45.00
F-number 2.06 3.00 5.00
half-field angle (degree) 33.66 23.99 16.62
Image height 12.08 13.43 13.43
total lens length 92.24 97.67 90.17
BF 13.96 9.90 3.00

Japan Patent Application 2019-028258
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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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