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Nikon DSLR Cameras
D7200
Gene Stinson - problem with a Sigma lens ( 120-300 F 2.8 DG EX OS AF )
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<blockquote data-quote="Gene Stinson" data-source="post: 545533" data-attributes="member: 41904"><p>I have a Nikon D7200 camera body, my problem is with a Sigma lens ( 120-300 F 2.8 DG EX OS AF ). I used this lens for a couple of years on a D7000 without any problem. With the D7200 body I found that it needed a firmware update to make the auto focus work properly, I sent it in to Sigma for the upgrade and it fixed the AF, or so I thought. If I accidentally leave the camera on for a few hours the battery runs down and when I insert a fresh battery the AF doesn't work at the focal lengths above about 225 for a day or so sometimes then it starts working, not sure but maybe it starts working again after mounting and trying it on my D7000, then go back to the D7200, not always. Also the battery on the D7200 runs down much faster than it does on the D7000, it may be just with this lens though. Does anyone have any idea or info that may help me with this aggravating problem short of buying a new lens, which I plan to do, but would like to wait a while.</p></blockquote><p></p>
[QUOTE="Gene Stinson, post: 545533, member: 41904"] I have a Nikon D7200 camera body, my problem is with a Sigma lens ( 120-300 F 2.8 DG EX OS AF ). I used this lens for a couple of years on a D7000 without any problem. With the D7200 body I found that it needed a firmware update to make the auto focus work properly, I sent it in to Sigma for the upgrade and it fixed the AF, or so I thought. If I accidentally leave the camera on for a few hours the battery runs down and when I insert a fresh battery the AF doesn't work at the focal lengths above about 225 for a day or so sometimes then it starts working, not sure but maybe it starts working again after mounting and trying it on my D7000, then go back to the D7200, not always. Also the battery on the D7200 runs down much faster than it does on the D7000, it may be just with this lens though. Does anyone have any idea or info that may help me with this aggravating problem short of buying a new lens, which I plan to do, but would like to wait a while. [/QUOTE]
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Nikon DSLR Cameras
D7200
Gene Stinson - problem with a Sigma lens ( 120-300 F 2.8 DG EX OS AF )
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