Just read about the new sigma lens APO 200-500mm F2.8 EX DG
Incredible that they can manage that speed over that range and it comes with teleconverter making it 400-1000 f5.6 - apparently lens is designed not to loose quality when using the extender.
Now for the best bit 🙂 😀
Check out the pic of it
http://www.sigma-photo.co.jp/english/news/200_500_28.htm
Incredible that they can manage that speed over that range and it comes with teleconverter making it 400-1000 f5.6 - apparently lens is designed not to loose quality when using the extender.
Now for the best bit 🙂 😀
Check out the pic of it
http://www.sigma-photo.co.jp/english/news/200_500_28.htm