The old Nikkor 45mm GN "pancake" makes a great combo with the D200. It has an excellent center sharpness, a great bokeh and very nice color rendering and ... it is very compact.
It a all metal lens, very solidly put together, with an awkward focusing action that accommodates the automatic diaphragm coupling.
If you're thinking about getting one, just be careful that you buy a factory AI converted one, otherwise you will damage your camera.
Now, don't forget the excellent Nikon E series 50mm f/1.8 lens! It performs better than the 45GN, but from time to time, I like to shoot with this exotic pancake lens...
