I am thinking of buying a f8-16 telephoto zoom lens with 2x teleconverter for my Nikon d5100. How good will it be for wild-life photography? Can it also be used for astrophotography?
Added (1). What I have in mind is Rokinon 650-1300 f/8-16 Telephoto zoom lens with 2x teleconverter 650-2600..probable made in USA.
>>> Is telephoto zoom lens really good for taking photos with DSLR cameras?