Canon Patent Application: Collection of RF Primes
It's been a while since we've seen a new lens patent from Canon. The initial flurry of patent applications during the initial development of the RF system seems to have died off. This could mean we get more targetted patent applications such as this one.
This patent application focuses (literally) on reducing the weight of the focus element group and suppressing aberrations while doing so. Canon submitted the application with the following embodiments.
Are these lenses coming? Some of them certainly may. It's hard to say if Canon makes a complete line of F1.2's that they'll do the same for F1.4, but I suspect we'll see a Canon RF 50mm F1.4 sooner than later.
Canon RF 24mm F1.4
Focal distance 24.00
F number 1.40
Half field angle 42.03
Image height 21.64
Length of Lens 120.00
BF 15.00
Canon RF 24mm F1.8
Focal distance 24.00
F number 1.80
Half field angle 42.03
Image height 21.64
Length of Lens 110.00
BF 15.06
Canon RF 50mm F1.4
Focal distance 50.00
F number 1.40
Half field angle 23.40
Image height 21.64
Length of Lens 100.00
Canon RF 28mm F1.8
Focal distance 28.00
F number 1.80
Half field angle 37.69
Image height 21.64
Length of Lens 100.00
BF 15.85
Canon RF 35mm F1.8
Focal distance 35.00
F number 1.80
Half field angle 31.72
Image height 21.64
Length of Lens 100.00
Back Focus 15.00
Canon Patent Application 2021-018277
5503
Richard 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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