Canon has introduced two new super-telephoto lenses, the EF 400 mm f/2.8L IS III USM and EF 600 mm f/4L IS III USM with significant weight reduction and high-image quality. While the EF 400 mm f/2.8L IS III USM received a weight reduction of over 25 percent, the EF 600 mm f/4L IS III USM is now lighter by 20 percent. Both lenses feature two of Canon’s most advanced … [Read more...]