I swore I wasn't going to get any Nikon DX lenses beyond the couple I already had, but my favorite walking-around crop sensor Nikon glass, the 16-80mm f/2.8-4E VR, won't work on my older bodies, like the D2X and D200 because of its electronically controlled diaphragm (indicated by the "E" in the model designation.)
The solution was tracking down an old 18-70mm f/3.5-4.5G, which was the kit lens on the D70 back in the day and is available crazy cheap on the used market as a result. In the image quality department it punches way out of its weight class for a sub-$100 piece of glass. It's also very small and light on a burly pro body like the D2X, enough so that you have to remind yourself that not only is it still on the camera, but it's much more fragile than the camera body itself, what with its plastic mount flange and lens barrel. The focal length range, equivalent to 28-105mm on a full-frame, is good for anything shy of closeups of squirrels in trees.
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