Canon Patents 70-135mm f/2 Internal-Zoom Telephoto

Canon has filed a patent for a 70-135mm f/2 zoom designed for full-frame cameras, using a fixed front group with internal zoom. The filing's numerical example covers 72.10-136.89mm at f/2.05, with a total optical length of 211mm from front element to sensor. Patent filings don't confirm a product is coming, but the design sits in the same class as Sony's FE 50-150mm f/2 GM, per the Fstoppers report.