Here is anew Canon patent application. Not for an RF mount lens for once but…
Another Canon patent dealing with lenses for the RF mount, i.e. for Canon’s full frame mirrorless system EOS R.
Canon patent application 2020-181071 (Japan) discusses optical formulas for an RF 50mm F1.4 and an RF 35mm f/1.4 lens. This patent application is particularly interesting since 50mm f/1.4 and 35mm f/1.4 are two very classic lenses for a full frame system.
The patent application seems to reveal a modern and complex optical design with front and rear lenses for optical correction. Moreover, we think it has internal focusing, a small size and a very fast auto-focus. Another two lenses that might go into production.
|Example 1||Example 2||Example 3|
|Half angle of view||22.79||24.05||24.04|
|Example 4||Example 5|
|Half angle of view||24.04||32.48|
More Canon patent applications are listed here.