Here is a new Canon patent application, this time for. 14-35mm f/2.8 lens for the…
Canon patent for EF 12-20mm f/4 lens for full-frame DSLR
Canon patent for another ultra wide angle zoom lens? Appears so, the patent describes an EF 12-20mm f/4 lens for full-frame DSLRs. Maybe not a “L” lens. You can read the patent literature here.