non AI compatibility

<p>OK, this has been addressed before and lots of sources say "no" to using a non-AI on my D200. Some actually (Rockwell) says they won't even mount, others (White) says damage will result. Well, I don't get it. I have a 24mm Nikkor NC f2.8 thats does mount and works fine in manual mode. What am I risking here? What kind of damage may result?</p>

<p>Either it's been Ai'd or your displacing(and possibly bending)the camera's Ai tab, which will eventually break, leaving you meter-less. Any body with an Ai tab will cause problems--AFS-only bodies without a tab don't with NAI lenses.</p>

<blockquote>

<p><em>"What am I risking here? What kind of damage may result?"</em></p>

</blockquote>

<p>Damage to the AI tab and ring surrounding the D200 mount.</p>

<p>If the back edge of the aperture ring of the 24mm is jammed against the indexing tab, then repeated mounting may break the tab, ring, or mechanism.</p>

<p>Some non-Ai lens cause more interference than other. Your 24mm Nikkor N-C may just barely touch the tab, while a 50mm Nikkor H-C for instance might jam on it so hard that the aperture ring won't even turn. Either way, if you don't know what to look for, you're playing with fire.</p><div></div>

<p>Thanks Gary and Michael.<br>

That was very helpful, now that I know what I am looking at I don' see that any of my lenses' ai tabs are stressed, but risking the meter that is just way too serious. I will have those lenses converted.</p>