Lens manufacturers have patented various zoom lenses, some offering a wide focal range and others power zooms for hybrid cameras. Canon, too, has varied patents in the works, including the RF ...
Canon today announced two new versions of its popular Image Stabilizer (IS) super-telephoto lenses. The EF 600mm f/4L IS II USM and EF 500mm f/4L IS II USM super-telephoto lenses deliver incredible ...