http://www.tamron.com/en/news/2013/1107.html
November 7,2013,Saitama, Japan - Tamron Co., Ltd.(President & CEO: Morio Ono),a leading manufacturer of precision optics, has announced the development of an innovative ultra-telephoto zoom lens with a focal length range of 150mm to 600mm for full-frame and APS-C format DSLR cameras. The lens sample will be on display in showcase at the Tamron booth at the Salon de la Photo 2013 which will be held from November 7 to 11 in Paris, France.