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Sigma Lens Compatibility Issues
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<blockquote data-quote="geoffwood" data-source="post: 681724" data-attributes="member: 28802"><p><span style="color: #202020"><span style="font-family: inherit">Hi folks,</span></span></p><p></p><p><span style="color: #202020"><span style="font-family: inherit">I have a Sigma DG 150-500 lens, which used to work fine on my D800. Now it doesn't autofocus. So has Nikon done something to actively stuff up the Sigma (maybe in firmware 1.11) ?</span></span></p><p><span style="color: #202020"><span style="font-family: inherit"></span></span></p><p><span style="color: #202020"><span style="font-family: inherit"></span></span>I think I've covered all other avenues:</p><p>- <span style="color: #202020"><span style="font-family: inherit">Other lenses do autofocus fine - old AF Nikkors, new AF Nikkors, etc. The Sigma used to.</span></span></p><p><span style="color: #202020"><span style="font-family: inherit"></span></span><span style="color: #202020"><span style="font-family: inherit">- Here is what is really weird - the Sigma DOES auto-focus fine on my F4 !</span></span></p><p><span style="color: #202020"><span style="font-family: inherit"></span></span><span style="color: #202020"><span style="font-family: inherit">- Yes, I have cleaned the CPU contacts on both lens and body with reputably (Caig) products.</span></span></p><p></p><p><span style="color: #202020"><span style="font-family: inherit">Any ideas or suggestions ?</span></span></p><p></p><p><span style="color: #202020"><span style="font-family: inherit">geoff</span></span></p></blockquote><p></p>
[QUOTE="geoffwood, post: 681724, member: 28802"] [COLOR=#202020][FONT='inherit']Hi folks,[/FONT][/COLOR] [COLOR=#202020][FONT='inherit']I have a Sigma DG 150-500 lens, which used to work fine on my D800. Now it doesn't autofocus. So has Nikon done something to actively stuff up the Sigma (maybe in firmware 1.11) ? [/FONT][/COLOR]I think I've covered all other avenues: - [COLOR=#202020][FONT='inherit']Other lenses do autofocus fine - old AF Nikkors, new AF Nikkors, etc. The Sigma used to. [/FONT][/COLOR][COLOR=#202020][FONT='inherit']- Here is what is really weird - the Sigma DOES auto-focus fine on my F4 ! [/FONT][/COLOR][COLOR=#202020][FONT='inherit']- Yes, I have cleaned the CPU contacts on both lens and body with reputably (Caig) products.[/FONT][/COLOR] [COLOR=#202020][FONT='inherit']Any ideas or suggestions ?[/FONT][/COLOR] [COLOR=#202020][FONT='inherit']geoff[/FONT][/COLOR] [/QUOTE]
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