Spent some time pondering purchasing a variable aperture zoom such as the 70-300mm VR before our trip to the Isle of Rum.
Eventually took my 180mm/2.8 and a manual TC200 2X converter. On the D200 this gives the equivalent of a 560mm f5.6. I used that to take this photo of a duck? (Does anyone know what it is?)
Settings 1/500th f5.6 ISO 125