150-500 mm Sigma

[Murugan Anantharaman]

I completely agree with Atul on 2 points.

1. The 300mm F4 is a great lens and couple with a 1.4x extender will give you amazing results. I have used it extensively when in Africa and got great shots. (I use a Nikon D7000)

2. 80-400mm is a very good lens as well but its a zoom lens and though is a good lens may not give results as good as the 300mm with 1.4x combination.

Costwise the 300mm+1.4x tc comes to about 91k INR and 80-400 92k INR ( from some reliable sources in Mumbai). However if you try to use a 1.4x extender on a 80-400 it would not give very good results unless you use narrower apertures. I would definitely recommend the 300mm+1.4x tc.

The sigma 150-500 is a lens which I have used a couple of times. My cousin has a D90 with a 150-500 and from the wildlife images he has been clicking since the last 3 years, the results have been very good. However, Sigma lenses have a quality problem on repetitive use, I have heard this from experts inclusive of Sabyasachi who have extensively used Sigma and do not recommend as compared to the lenses manufactured by Nikon(in your case).