I'll try to keep this quick and not very technical. I bought a used D3 on this forum about 1.5 years ago and have been loving it. Only recently, it has started to give me less than reliable focus using my 70-200 VR1 and 300 VR. I tried the lenses with my backup D300 and back to amazing images. I am in great need of the high ISO performance the D3 gives, so I am reluctant to send it off for a month to have Nikon look at it.
1) Wondering...is FoCal calibration software worth a shot? 2) Are there other (obvious or not) camera settings I should be checking in advance that could be affecting the focus?
The previous owner did have some AF Fine Tune settings for his lens that I have turned off.
Any advice on the focus issue would be appreciated. If you need further info, I will try to fill in the blanks.