New Canon Patents for RF 600mm f/4 and RF 400mm f/2.8 Super-Telephoto Lenses
Here are the new Canon Patents for RF 600mm f/4 and RF 400mm f/2.8 Super-Telephoto Lenses. Canon patent application 2022-22771…
Canon RF 600mm f/4 IS Extender 1.4x
Read More
Canon Patent for 400mm f/4 DO IS Extender 1.4x and 600mm f/4 IS Extender
Canon filed a new patent for 400mm f/4 DO IS Extender 1.4x and 600mm f/4 IS Extender. Canon patent application…