Yes, older screwdrive AF and AF-D lenses generally only lose their AF ability. IIRC the D3500 also won't meter with those lenses. Non-CPU lenses won't meter on any of the D3xxx and D5xxx series.Is it correct that the older lenses can be used except only with manual focusing?A clarification is needed here as the D5100 also doesn't have a focusing motor so the same lens restriction applies to both the D3200 and D5100.You made the right choice, not that the D3200 is bad, but the D5100 is better, the 3200 doesn't have a focusing motor, that limits you to certain lenses and I feel it's better built.
Nikon's product differentiation gods have decreed all D5xxx models, like all D3xxx models, shall be without an in-body AF motor. To AF the older screwdriver type AF lenses you need to step up the D7xxx models.
- John
True also for Nikon. It should be spelled out in the users manual what rare lenses (IIRC an old fisheye was one) should not be used. I recommend you download the manual for your D5100.I kind of remember something about some old lenses that have mounts that can damage the mirror. I think that applies to Canon but not sure about Nikon.
There is also damage issues mounting pre-AI manual focus lenses that vary by body model. On a D5100 that would involve the minimum aperture sensing switch at about the 8 o'clock position on the lens mount. If that switch can not be easily pushed in to be flush with the surrounding surface then the aperture ring of a pre-AI lens when mounted will crush it in flush. At some point Nikon redesigned that switch on to tolerate being pressed in, but I don't know if that was before or after the D5100.
That is an unfortunate side effect of Nikon's decision to maintain as much functionality as possible with their legacy lenses. There are several websites that attempt to sort this issue out, one being Ken Rockwell .I do remember when I had my D60 that the were seemingly random lenses that work, didn't work or some feature of the lens wouldn't work. That always drove me a little crazy when looking at lenses for it.
- John


