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Other Photography Equipment
Refurb 1.7x TC & 300mm PF
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<blockquote data-quote="BF Hammer" data-source="post: 740763" data-attributes="member: 48483"><p>Hark, all I can contribute is that I gave up on tele-converters shortly after buying my D7000 years ago. I had a 1.4x Tamron autofocus-compatible converter back in my D80 days. It never failed to function with either of my 2 D80 bodies. But using the same lens on my D7000 with that tele-converter only gave me an error code in the viewfinder. It would not work right with a D7000, but back on the D80 was no problem. They are finicky things apparently, and some sort of smarts built-in. Those electrical connectors don't appear to just pass through the signal.</p><p></p><p>So long story short, there has to be a capacitor or a diode that is limiting the required power for the focus motor and VR at the same time, or something like that. There may not be a fix other than ditching the tele-converter.</p></blockquote><p></p>
[QUOTE="BF Hammer, post: 740763, member: 48483"] Hark, all I can contribute is that I gave up on tele-converters shortly after buying my D7000 years ago. I had a 1.4x Tamron autofocus-compatible converter back in my D80 days. It never failed to function with either of my 2 D80 bodies. But using the same lens on my D7000 with that tele-converter only gave me an error code in the viewfinder. It would not work right with a D7000, but back on the D80 was no problem. They are finicky things apparently, and some sort of smarts built-in. Those electrical connectors don't appear to just pass through the signal. So long story short, there has to be a capacitor or a diode that is limiting the required power for the focus motor and VR at the same time, or something like that. There may not be a fix other than ditching the tele-converter. [/QUOTE]
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Refurb 1.7x TC & 300mm PF
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