Canon RF 300mm f/2.8L IS USM Lens Coming in 2020
As previously reported, Canon is currently working on a new RF 500mm f/4L IS USM lens, that will be the…
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…
