Hello Sabyasachi Patra,
Many Thanks for the update, Many forums predict the Market availability dates of 500mm F/4 as May 2011 and 600mm F/4 as June 2011 In the US ,is there anyway to officially confirm the same (SOURCE: http://www.birdphotographers.net/forums/showthread.php/79549-Canon-U.S.A.Announces-Two-New-Telephoto-Lenses-EF-500mm-f-4LIS-II-USM-And-EF-600mm-f-4L-IS-II-USM), can anyone suggest is there anyway we can pre-book the same in INDIA, I even dont mind making substantial payment as advance if thats for CANON INDIA directly.
Thanks in Advance,
PJ