Canon Patent Application: 16-40, 14-40mm F.40 UWA Zooms

In yet another patent application for the Canon RF mount, we have more optical designs for an F4.0 Ultra wide lens.

This patent application features embodiments for around two focal length zooms; 14-40, 16-40.  Both of these lenses are constant F4.0

Examples of the embodiments include;

Focal distance 14.43 21.62 40.74 
F number 4.12 4.12 4.12 
Half field angle 56.30 45.01 27.97 
Image height 21.64 21.64 21.64 
Whole length of the lens 138.31 128.15 129.29 
BF 12.84 12.84 12.84

Focal distance 16.41 23.12 38.80 
F number 4.12 4.12 4.12 
Half field angle 52.82 43.10 29.14 
Image height 21.64 21.64 21.64 
Whole length of the lens 118.88 112.53 114.89 
BF 12.78 12.78 12.78 

Japan Patent Application 2019-066653

Richard CanonNewsRichard CanonNews

Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on infrared photography. Richard is the founder and editor of CanonNews since 2017, and has worked as a writer on CanonRumors and other websites in the past.

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