Having just bought a Nikon D800, i decided to have a play with the 50mm 1.4G on it.
I noteced it was back-focusing by about 2cm so tweeked the AF fine-tune. however thats now maxed out at -20 and its not brough the focus close enough still.
Is there any way to manually adjust / calibrate either the lens and/or camera body without having to resort to sending them away?