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Canon Patent Application: Canon EF-M kit lenses
This patent application is for a Canon EF-M 16-45 (IS STM most likely) with a variable aperture of 3.5-5.6, as well as a few other embodiments. Canon needs to continue to work on lenses for the EF-M, including a better kit lens with less copy variation. This patent application hopes to bring good optical performance with less vignetting in the periphery regions.
Focal length 15.51 28.00 43.48
F-number 3.64 4.94 6.50
angle of view 41.38 26.01 17.44 (deg.)
Image height 13.66 13.66 13.66
length of the zoom 75.09 71.52 75.03 lens
BF 11.49 17.56 25.24
Focal length 16.00 40.49 47.04
F-number 3.50 5.30 5.82
angle of view 37.77 18.64 16.19 (deg.)
Image height 12.40 13.66 13.66
length of the zoom 73.45 70.14 73.25
lens BF 10.94 22.37 26.27
Focal length 15.51 28.00 43.48
F-number 3.64 4.94 6.50
angle of view 41.38 26.01 17.44 (deg.)
Image height 13.66 13.66 13.66
length of the zoom 75.09 71.52 75.03
lens BF 11.49 17.56 25.24
Focal length 18.51 49.01 130.98
F-number 3.59 4.82 5.88
angle of view 36.43 15.57 5.95 (deg.)
Image height 13.66 13.66 13.66
length of the Zoom 104.31 122.72 148.15
lens BF 10.99 24.52 36.57
US Patent Application 20190004277
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