I got my D800 16 days ago, after pre-ordering in the uk.

I seem to have a very serious left/right alignment problem. You can see that the Centre and Right are acceptably sharp - the other is the leftmost AF point which is way out.

I suspected a problem after reading about the AF issues online, and after initial checks which didn't look good, I bought the Reikan FoCal software, which also shows a major left/right disparity.

I don't think it even takes a test chart to show the problem - check out the pics; lens is the 50mm f/1.4G wide open.

NB: Camera was mounted on a CF tripod and exposure delay set at 3 seconds. The results are similar when tested with the 14-24G and the 24-70G, so it's not a lens problem.

thanks for any advice,
Frank

Attachment #1, (jpg file)
Attachment #2, (jpg file)
Attachment #3, (jpg file)

In your tests I would expect the right and left af points to be similar. Your left looks much worse to me. I would exchange or send in for repair if it were mine.

This time, with the 14-24G f/2.8 wide open in the order

AF Centre
AF Leftmost
AF Rightmost

Attachment #1, (jpg file)
Attachment #2, (jpg file)
Attachment #3, (jpg file)

I dont see how you can tell anything from these images..

the subject in in the center of each one, and there is nothing where the left and right points are...

Visit My Website Nikon Fanboy.

the subject was focussed on once with the centre focus point, once with the left focus point and once with the right focus point. These images are crops from the location of the centre focus point (pic 1), left focus point (pic 2) and right focus point (pic 3).

Otherwise the subject would have been far too small or the photos far too big to upload.

I think the crops should be sufficient for a quick illustration of the problem. Other photos I've taken with the same method show exactly the same pattern, including the FoCal software.

Frank

Looks like you have the focus problem.
Upload images to nikon service and they will arrange for you to have it fixed (hopefully)

Visit my Nikonians gallery.

It performs much better on the left AF point.

Autofocus is still very hit-and-miss wide open and at f/2 with my 50mm f/1.4G, but now I can often get very good results on the leftmost AF point - with my previous version of the camera, I could NEVER get a sharp shot with it.

Stopping down the 50mm f/1.4G gives much more reliable AF results on all points tested.

Again, thanks for your input,
Frank