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<blockquote data-quote="imaz" data-source="post: 373908" data-attributes="member: 33738">Hi,So I tried your link and made adjustments to the hex screw behind the mirror.&nbsp; The hex screw on the d7000 is closest to the lens mount and not the one closest to the sensor! ( that one is for the mirror bracket and should not be adjusted )...&nbsp; anyway,&nbsp; I adjusted the hex screw and turned it clockwise which made it AF more blurry in general rather than fix my front focusing issue...&nbsp; it seems the last visit to nikon service center corrected my kit lens back focus issue by far at the service software level which I cant get access to. So it throws my sigma lens front focus....&nbsp; So I turned back the hex screw counter clockwise back to how it was and get it to front focus again.&nbsp; And just use the finetune AF to +20 to get my sigma to a reasonable sharpness. I wish I had the flexibility to have it around +10 instead,&nbsp; as at +20 means no more adjustment can be made...I really need to get access to the d7000.exe service software to made AF adjustments to the body at a lower level...The kit lens no longer needs AF fine tune.</blockquote>

[QUOTE="imaz, post: 373908, member: 33738"] Hi, So I tried your link and made adjustments to the hex screw behind the mirror. The hex screw on the d7000 is closest to the lens mount and not the one closest to the sensor! ( that one is for the mirror bracket and should not be adjusted )... anyway, I adjusted the hex screw and turned it clockwise which made it AF more blurry in general rather than fix my front focusing issue... it seems the last visit to nikon service center corrected my kit lens back focus issue by far at the service software level which I cant get access to. So it throws my sigma lens front focus.... So I turned back the hex screw counter clockwise back to how it was and get it to front focus again. And just use the finetune AF to +20 to get my sigma to a reasonable sharpness. I wish I had the flexibility to have it around +10 instead, as at +20 means no more adjustment can be made... I really need to get access to the d7000.exe service software to made AF adjustments to the body at a lower level... The kit lens no longer needs AF fine tune. [/QUOTE]

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