If you are looking at the camera body with the lens flange exposed and visible, at about the 6:30 position is a little protruding blade. It slides into a corresponding slot on the lens mount. Newer G lenses for example, don't have a corresponding slot and are only electronically controlled. My recollection is that the D200 has provision for both. If your lens has the slot, the body attempts to use it for auto focussing. My lenses are a mixed bag, some do but most don't. Cheers, James Sent from David's iPad On Feb 18, 2012, at 10:55 PM, Trevor Cunningham <trevor@xxxxxxxxxxxxxxxx> wrote: > Not sure, I don't see a mechanical relationship between the body and the lens, just contacts. They're both fairly modern lenses, no more than five years old. > > On 2/19/12 5:40 AM, James Schenken wrote: >> Trevor >> >> Does the lens you are having problems with use the mechanical focus coupler or the electronic one? >> >> If mechanical, the problem may be internal to the D200 body. >> >> Cheers, >> James >> >> >> Sent from David's iPad >> >> On Feb 18, 2012, at 4:04 PM, Trevor Cunningham<trevor@xxxxxxxxxxxxxxxx> wrote: >> >>> hey gang, >>> >>> My D200 autofocus is doing weird things. I've noticed, recently, that it sounds like gears skipping in the lens. That particular lens I had repaired for actual damage issues, so I thought it was just a poor repair job. But then another lens started acting up. So, I tried both lenses on my D300s and they work fine there. So, the culrpit is the D200 body. Is there a setting that adjusts how the autofocus communicates with the lens motor? Do I need to clean the contacts (with what)? I fear that I'm just damaging the lenses using autofocus on this camera. >>> >> >
