LEICA APO-TELYT-R 1:5.6/1600mm. This one-off extreme telephoto was created for Sheikh Saud Bin Mohammed Al-Thani of Qatar for 16 million Hong Kong dollars, just over $2 million in the US. It fits the Leica R-mount, is 1.2 meters long (1.55 with a lens hood), has a maximum diameter of 42cm, and weighs 60kg.