Guess...StewartR, is this you starting to look at the possibility of getting some Nikons to hire?
:fingerscrossed:
As I understand it, the D40/D40x/D60 rely on the lens having an autofocus motor (i.e. AFS lenses), whereas other bodies such as the D80 have a built-in autococus drive for lenses that don't have one (i.e. AFD lenses).
So if you fit an AFS lens onto a D80, how does the autofocus work? Is it the in-lens or in-body motor that does the work? And as a corollary, if the autofocus motor in an AFS lens has failed, is there any way of finding that out if your body is a D80?
OK, if you're sure about that, then in order to test that an AFD or AFS lens is fully functional, I don't need anything more than a second-hand D50?The body "knows" the lens is AFS (I think there are extra contacts on the lens 9 instead of 7 IIRC) and therefore the body doesn't attempt to use its A/F motor and the lens does the work.So if you fit an AFS lens onto a D80, how does the autofocus work? Is it the in-lens or in-body motor that does the work? And as a corollary, if the autofocus motor in an AFS lens has failed, is there any way of finding that out if your body is a D80?
If the AFS motor breaks then AF doesn't work. I'm guessing there may be an error code shown on the camera but I don't know.
OK, if you're sure about that, then in order to test that an AFD or AFS lens is fully functional, I don't need anything more than a second-hand D50?
OK, if you're sure about that, then in order to test that an AFD or AFS lens is fully functional, I don't need anything more than a second-hand D50?