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D7000 Backfocus: am I missing something?

Rassie

Milton, CA
4035 posts

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"RE: D7000 Backfocus: am I missing something?"

Rassie Gold Member Nikonian since 08th Jan 2006
Wed 09-Jan-13 11:54 PM

I have two lenses: Nikkor 18-200 mm VR11 and Sigma 150-500 mm OS. Both these lenses worked fine on both my D70S and then on my D90. I got my D7000 in September 2012 and immediately noticed softly focused pictures. I then tested with a focus chart and found the body to back-focus. Autofocus fine tuning of -20 was not sufficient to fix the issue. Some people believe the higher resolution of the D7K shows up the weaknesses of cheaper lenses more clearly. Maybe so.....

I sent the body and the Nikkor lens to Nikon and they adjusted the autofocus. After that I still had to play with fine tuning the AF. Having set the AF for the Sigma lens to -15 and the Nikkor to -17 now produces nice sharply focused pictures with both lenses. According to the Nikon repair facility, if one can achieve sharp autofocus within the -20 to +20 settings of the AF fine-tuning, the camera is within specification.

If I were in your shoes I would send the cameras and all lenses to Nikon for calibration. You'll probably find that they can improve the situation.

Regards

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This is a hot, active topic! D7000 Backfocus: am I missing something? [View all] , RLDubbya Silver Member , Wed 09-Jan-13 10:29 AM
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