I have been frustrated in the last year with my 200 mm Nikon lens. Wildlife photography is not my major focus, but the all the photos I have taken from boats of tiny bird in trees this past year are disocuraging. So I am thinking up moving up to a 300 or even 400 mm. Money apart (and they are very expensive), I have worried that a larger lens might prove so heavy that I would have trouble using it.
That said, I have a 5 year old Nikon D50. It is serviceable, but the 6 megapixels seem paltry to what is available in the newer models. Should I hang on to my reliable old Nikon and buy a new lens, or buy the lens first?
Any advice appreciated.