Some birds @ 1200 mm .

Stork billed Kingfisher
1/125s , f8 , ISO 3200

Small Blue Kingfisher
1/250 , f8 , ISO 3200

White Rumped Munia
1/400 , f8 , ISO 3200

All shot with a Mk III and a 600 mm with a 2X TC .

I found that the 2X TC works beautifully if you use full frame images . The quality degrades the moment you crop .

Regards,
Rakesh

--
Dream in colour. You can always post process to BnW later.

http://www.rakeshdhareshwar.com

Canon 1D Mk III , 600 f4 IS ,70-200 2.8 IS, Wimberley , Gitzo , SB 800