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Nikkor 18-135 contacts
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<blockquote data-quote="crisscross" data-source="post: 52123" data-attributes="member: 8717"><p>OK, I think I can at least partly answer my own question and my experience may help others with plastic mounts.</p><p></p><p>You get reasonable access by removing the 9 small screws as shown in that video ( <a href="http://www.youtube.com/watch?v=Pd6pvvQ1_So" target="_blank">How: Replace Rear Bayonet Mount on Nikon AF-S DX Zoom Nikkor f/3.5-5.6G Version I, II, and VR - YouTube</a> ) , but this also releases everything down to the manual focus ring, so care needed to know how it all goes back.</p><p></p><p>The obvious bank of terminals are connected to a circuit board by a multi-wire tape and there is no way that can fail to conduct.</p><p></p><p>The less obvious thing is a very small pin projecting a mm from the rear face (and is not present on the metal mount lens I have); the other end of this engages with a sprung tab and is what provides earth continuity between the camera circuits and those within the lens. I opened the tab up a bit and lightly cleaned it and the inner end of the pin with fine emery paper.</p><p></p><p>It works! Obviously for how long remains to be seen. But really, unless one of the lumps of plastic has been broken by dropping, there is nothing to replace.</p><p></p><p>If there was A.J Johnstone of Glasgow will supply available Nikon parts for DIY repairs, and are incredibly fast and helpful in their email responses. <a href="http://www.ajjohnstone.co.uk/" target="_blank">A. J. Johnstone Camera Repairs based in Glasgow Scotland UK . Photographic engineers glasgow</a></p></blockquote><p></p>
[QUOTE="crisscross, post: 52123, member: 8717"] OK, I think I can at least partly answer my own question and my experience may help others with plastic mounts. You get reasonable access by removing the 9 small screws as shown in that video ( [URL="http://www.youtube.com/watch?v=Pd6pvvQ1_So"]How: Replace Rear Bayonet Mount on Nikon AF-S DX Zoom Nikkor f/3.5-5.6G Version I, II, and VR - YouTube[/URL] ) , but this also releases everything down to the manual focus ring, so care needed to know how it all goes back. The obvious bank of terminals are connected to a circuit board by a multi-wire tape and there is no way that can fail to conduct. The less obvious thing is a very small pin projecting a mm from the rear face (and is not present on the metal mount lens I have); the other end of this engages with a sprung tab and is what provides earth continuity between the camera circuits and those within the lens. I opened the tab up a bit and lightly cleaned it and the inner end of the pin with fine emery paper. It works! Obviously for how long remains to be seen. But really, unless one of the lumps of plastic has been broken by dropping, there is nothing to replace. If there was A.J Johnstone of Glasgow will supply available Nikon parts for DIY repairs, and are incredibly fast and helpful in their email responses. [URL="http://www.ajjohnstone.co.uk/"]A. J. Johnstone Camera Repairs based in Glasgow Scotland UK . Photographic engineers glasgow[/URL] [/QUOTE]
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