Sigma push the boundaries once again, bloody insane!
http://translate.google.com/transla...fe=off&ie=UTF-8&oe=UTF-8&prev=/language_tools
Sigma 200-500mm f2.8, supplied with a dedicated APO Teleconvertor to transform it into a 400-1000mm f5.6, or a 35mm equivalent of 1500mm. I assume a small truck to carry the thing around is optional.
A few pics...
http://www.dpreview.com/news/0703/Sigma/sigma200500mm-04.jpg
http://www.dpreview.com/news/0703/Sigma/sigma200500mm-03.jpg
http://translate.google.com/transla...fe=off&ie=UTF-8&oe=UTF-8&prev=/language_tools
Sigma 200-500mm f2.8, supplied with a dedicated APO Teleconvertor to transform it into a 400-1000mm f5.6, or a 35mm equivalent of 1500mm. I assume a small truck to carry the thing around is optional.
A few pics...
http://www.dpreview.com/news/0703/Sigma/sigma200500mm-04.jpg
http://www.dpreview.com/news/0703/Sigma/sigma200500mm-03.jpg