Canon has patented a new optical design for an impressive EF 28-560mm f/2.8-5.6 super zoom lens.
The patent application describes a 20x optical formula super zoom optic designed for Canon full frame DSLRs. and this patent is also a possible replacement model for this one.
Canon’s current super zoom lens is the EF 28-300mm f/3.5-5.6L IS and the rumor mill has known for some time that Canon was working on a replacement to this model and this could be it.
