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Nikon DSLR Cameras
D7100
Help!! front dial will not work
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<blockquote data-quote="yauman" data-source="post: 350197" data-attributes="member: 15418"><p>Try these two things first:</p><p></p><p>1. Remove lens and use a clean lens cloth or tissue to wipe the electrical contacts on the body side of the mount - there are 8 very obvious electrical contacts in the inside of the mount located at 12 o'clock position (right below the Nikon logo.) They are not that small - just wrap a lens tissue around your finger and give it a couple of wipes. (Wipe dry - no cleaners or any liquid.) </p><p></p><p>2. Exercise the mode dial on the left top of the camera. Rotate it to M, S, T, etc back and forth a few times.</p><p></p><p>If that does not change things, you may have to send the unit back to Nikon.</p><p></p><p>When you say that the aperture does not change when you rotate the front dial, does the front dial work for other functions? Press the AF button (left side of camera body, next to lens, ie the AF-MF switch but press, not switch.) and rotate the front dial. Does the focus mode pattern change? Press the Bracketing button (BRKT - left side of camera body below Flash button) and rotate the front dial - does the bracketing F-stop change? (look at upper right corner number on top LCD info screen.) If these changes, then your front dial is working but communications with your lenses are not working - it's Nikon time. If these don't change then you have a bad front dial - it's also Nikon time. </p><p>We have seen in the shop occasionally "flat" spots on the front dial - ie when you rotate, you should feel clicks all the way around. But with "flats spots" there are no clicks - just smooth rotation through 90 to 180 degs of rotation and then something catches and you feel the click again. That's a mechanical fault with the detent spring which also is the electrical contact switch inside. Same thing - it's Nikon time!</p><p></p><p>Hope this helps.</p></blockquote><p></p>
[QUOTE="yauman, post: 350197, member: 15418"] Try these two things first: 1. Remove lens and use a clean lens cloth or tissue to wipe the electrical contacts on the body side of the mount - there are 8 very obvious electrical contacts in the inside of the mount located at 12 o'clock position (right below the Nikon logo.) They are not that small - just wrap a lens tissue around your finger and give it a couple of wipes. (Wipe dry - no cleaners or any liquid.) 2. Exercise the mode dial on the left top of the camera. Rotate it to M, S, T, etc back and forth a few times. If that does not change things, you may have to send the unit back to Nikon. When you say that the aperture does not change when you rotate the front dial, does the front dial work for other functions? Press the AF button (left side of camera body, next to lens, ie the AF-MF switch but press, not switch.) and rotate the front dial. Does the focus mode pattern change? Press the Bracketing button (BRKT - left side of camera body below Flash button) and rotate the front dial - does the bracketing F-stop change? (look at upper right corner number on top LCD info screen.) If these changes, then your front dial is working but communications with your lenses are not working - it's Nikon time. If these don't change then you have a bad front dial - it's also Nikon time. We have seen in the shop occasionally "flat" spots on the front dial - ie when you rotate, you should feel clicks all the way around. But with "flats spots" there are no clicks - just smooth rotation through 90 to 180 degs of rotation and then something catches and you feel the click again. That's a mechanical fault with the detent spring which also is the electrical contact switch inside. Same thing - it's Nikon time! Hope this helps. [/QUOTE]
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Nikon DSLR Cameras
D7100
Help!! front dial will not work
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