Update on D800 AF issues

Started Apr 5, 2012 | Discussions thread
Graeme Davidson
Graeme Davidson Regular Member • Posts: 106
Re: zoltrix79 - and anyone whose problem is NOT asymmetrical please read

inasir1971 wrote:

I had one from yesterday's batch and noticed that focusing was different between the outer points and the center - however, like you, I did not have any asymmetry.

I found that a lot of people were having to adjust their lenses (which they didn't before with large negative adjustments) - this seems to be quite common with the D800's and D4's

I compared live view and PD AF center point to determine whether it was front/back focusing. It was, I used adjustment for the lenses and got perfect focus - the PDAF is now as good as live view. My adjustments were:

  • 50mm 1.4G --- -18

  • 14-24mm 2.8G --- -7

  • 24-120 f/4 G VR --- no adjustment necessary

As you can see, they are pretty large for the faster lenses.

Now, all AF points are fine and work perfectly

Those settings for the 50mm and 14-24mm are pretty close to the settings I ended up using on both a D4 and D800. I had to go all the way to -20 on the 50mm f/1.4G on the D800, -18 on the D4.

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