
Originally Posted by
Markus Jais
I agree about the advice with the weight. I have the Canon 4/600 II (about the weight of the 4/500 VR) and the 4/200-400 1.4x. Carrying both is a pain. I wouldn't want to miss any of those lenses but for longer walks when I need the 4/600 I will seriously consider bringing my 4/300L IS as a shorter lens and not the 200-400. Only for cases where I don't expect to use the shorter lens much, though.
If I remember correctly, Nikon has a new patent on a 4/300 VR. I would expect one to be announced in the not too distant future but nobody knows any specific date.
If you want more flexibility and don't need f2.8 or f4 the 80-400mm f/4.5-5.6G ED VR AF-S NIKKOR (the new version!) might be a good choice. Would be a great lens for large mammals and birds that are close. Very sharp lens.
Is the D4 an option? If you can afford it, I would choose that one over the D3s as it has a bunch of improvements.
Markus