If you are lucky enough to attend the Photokina Event 2006, starting on September 26, you might want to take some time to stroll past booth B010 in Hall 2.1. There you will see the world's largest telephoto lens - by far. The lens, developed by Carl Zeiss, has a focal length of 1700mm and weighs an unbelievable 256 kg (563 lbs). It provides a total of 21x magnification at a speed of f/4. Due to its size, all adjustments, including aiming and focusing, are done robotically. One can only imagine the price tag on this supertelephoto.