Going to NZ south island in december. I intend to spend time travelling around taking landscapes. I have a Nikon D80 with 12-24mm f4 lens and the 18-135mm kit lens. I have also bought a polarizer for both.
What other filters or lenses would you recommend? How useful is a graduated filter? Is a fixed wide-angle lens better than a zoom lens in terms of sharpness and projecting depth?