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Message: <blockquote data-quote="icSlowMo" data-source="post: 46538" data-attributes="member: 8428"><p>I am one that also had a back focus issue w/ my D7000. I also have the 35 f1.8 and the 50 f1.4 and had them both at -20 also. Sent camera in and now the 50 is at -5 and 35 is at -16.  So now I know it's the 35 f1.8 that is the issue. I also have the 24-70 f2.8 and before repair it was at -16 and after is at -6 and dead on ever time. So this tells me that back focus is in the camera bodies not always the user..... and not in just the "cheaper" lenses either... Hope this helps. Also I find the AF system to focus differently depending on close focus and normal ranges for focus. Also people tend to show different focus characteristics also.....</p></blockquote><p></p>