I've got a Nikon D700 and am looking to buy a lens for taking images of wildlife - birds in particular. Looked at the Sigma 12-400 and Tamron 200-500 jobs but was wondering if a prime Nikon 180 f2.8 or, but far more expensively, 300 f4 with a Nikon teleconvertor would give me a satisfactory alternative?
Thoughts welcome
Thoughts welcome