Hi everyone, My first post on this forum and i'm hoping to get some advice.. My sister is getting a d80 and wants a long telephoto zoom lens to with it, mainly for wildlife photography. The budget is around 1000 euro. Now 3 options we have come up with are: Sigma AF 170-500/5-6.3 DG APO Nikon Sigma AF 50-500mm F4-6.3 EX DG HSM APO Nikon Sigma AF 80-400mm F4.5-5.6 EX DG OS APO Nikon Now from most of what i have found on the net, the 50-500 is better quality than the 170-500. But being such long lenses for a relatively low price, it makes me sceptical of the quality of either of them. Anybody here have any experience with these lenses and can give me some advice on that point? The third option is a slightly shorter lens, but with image stabilizing. This in my opinion might be more of an advantage than the extra bit of length of the other two lenses. What do you guys think about this? So those are the options that i've come up with so far. I guess what i am asking for is your opinions/experiences on any of these choices, and maybe suggestions for other alternatives. Any help is much appreciated. Thanks in advance, Lamyraison.