Canon RF 400mm f/2.8L, RF 500mm f/4L, RF 600mm f/4L IS USM Lens Patents
Canon has filed three super telephoto prime lens patents in Japan. These products are the RF 400mm f/2.8L IS USM…
Canon RF 500mm f/4L IS Lens : First RF Mount Super Telephoto Prime
Canon RF 500mm f/4L IS lens is rumored to be in the works. The lens will be the first super…
