I don't know why I didn't notice this before but...
It seems that the distance scale on the Nikkor DX 18-70mm lens (the
lens that comes with the D70 as a kit) is set to be accurate only at
maximum telephoto. When set to widest wide-angle, the distance scale
is quite a way off. I did a test on maximum wide angle with a subject
(practically) at infinity. The distance when autofocussed was
(according to the scale) closer to the 2m mark than the infinity mark.
(I know the scale isn't linear, but was still suprised where the
autofocus seemed ...