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Nikon DSLR Cameras
Out of Production DSLRs
D2H/D2Hs/D2X/D2Xs
400mm f3.5 + TC301 on D2X - problems
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<blockquote data-quote="LensWork" data-source="post: 45156" data-attributes="member: 1283"><p>The lever that you have pointed out is the <span style="font-family: 'Trebucht MS'"><span style="font-size: 10px"><span style="color: #000000">lens speed indexing post</span></span></span> (3 in the image below). This lever will flop around when the teleconverter is not mounted to a lens. It is a transfer bar type lever that is positioned by mating to the corresponding lever on the lens. Digital bodies such as the D2 series rely on the <span style="font-family: 'Trebucht MS'"><span style="font-size: 10px"><span style="color: #000000">meter coupling ridge</span></span></span> (4 in the image below) for metering with non-CPU lenses . On an Ai lens this ridge turns as the aperture is changed; this ridge is fixed on a teleconverter and does not turn with the the aperture ring on the lens. This is why the aperture setting is not functioning on the D2. There is nothing wrong, just the D2 lacks the coupling <span style="font-family: 'Trebucht MS'"><span style="font-size: 10px"><span style="color: #000000">(lens speed indexing post) </span></span></span>to determine the aperture as set on the lens.</p><p></p><p>[ATTACH]8108[/ATTACH]</p></blockquote><p></p>
[QUOTE="LensWork, post: 45156, member: 1283"] The lever that you have pointed out is the [FONT=Trebucht MS][SIZE=2][COLOR=#000000]lens speed indexing post[/COLOR][/SIZE][/FONT] (3 in the image below). This lever will flop around when the teleconverter is not mounted to a lens. It is a transfer bar type lever that is positioned by mating to the corresponding lever on the lens. Digital bodies such as the D2 series rely on the [FONT=Trebucht MS][SIZE=2][COLOR=#000000]meter coupling ridge[/COLOR][/SIZE][/FONT] (4 in the image below) for metering with non-CPU lenses . On an Ai lens this ridge turns as the aperture is changed; this ridge is fixed on a teleconverter and does not turn with the the aperture ring on the lens. This is why the aperture setting is not functioning on the D2. There is nothing wrong, just the D2 lacks the coupling [FONT=Trebucht MS][SIZE=2][COLOR=#000000](lens speed indexing post) [/COLOR][/SIZE][/FONT]to determine the aperture as set on the lens. [ATTACH=CONFIG]8108._xfImport[/ATTACH] [/QUOTE]
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Nikon DSLR Cameras
Out of Production DSLRs
D2H/D2Hs/D2X/D2Xs
400mm f3.5 + TC301 on D2X - problems
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