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80-400mm AF-VR ED 4.5-5.6 zoom lockup advisory. Read if you have this lens.
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<blockquote data-quote="D200freak" data-source="post: 511608" data-attributes="member: 41018"><p>The lens repair has been completed, as far as I'm able to at this time. For some reason there's an as yet undiagnosed short in the VR system. I have tried both VR lens assemblies and replaced the other circuitry in the lens as well, except for the CPU flex circuit, of which I only have one that is usable.</p><p></p><p>The short is severe, so bad that it will kill the battery in seconds. (Battery cuts out on current overload, for safety reasons.) But it's only present when the VR circuit is turned on.</p><p></p><p>That's OK, because this lens will probably be on a tripod pretty much 100 percent of the time and VR isn't necessary. It doesn't focus fast enough to be a good lens at the racetrack anyway but it should be killer for wildlife photography. </p><p></p><p>Considering the thing was broken in HALF when I got it, I'll call this repair adequately successful. For safety reasons I think I'll just disconnect the VR switch and be done with it.</p></blockquote><p></p>
[QUOTE="D200freak, post: 511608, member: 41018"] The lens repair has been completed, as far as I'm able to at this time. For some reason there's an as yet undiagnosed short in the VR system. I have tried both VR lens assemblies and replaced the other circuitry in the lens as well, except for the CPU flex circuit, of which I only have one that is usable. The short is severe, so bad that it will kill the battery in seconds. (Battery cuts out on current overload, for safety reasons.) But it's only present when the VR circuit is turned on. That's OK, because this lens will probably be on a tripod pretty much 100 percent of the time and VR isn't necessary. It doesn't focus fast enough to be a good lens at the racetrack anyway but it should be killer for wildlife photography. Considering the thing was broken in HALF when I got it, I'll call this repair adequately successful. For safety reasons I think I'll just disconnect the VR switch and be done with it. [/QUOTE]
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Lenses
Telephoto
80-400mm AF-VR ED 4.5-5.6 zoom lockup advisory. Read if you have this lens.
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