Nikon AF-S NIKKOR 500mm f/4G ED VR II or Nikon AF-S NIKKOR 600mm f/4G ED VR lenses
Autofocus points show in the diagram when used with the TC-17E 1.7X and TC 20E III 2X teleconverters. When used with the 2X TC focus data for focus points other than the center focus points are obtained with line sensors. Single point AF is used when 3D tracking or auto-area AF is selected as the AF mode.
Also I just received an email from a friend regarding an email reply he received from NPS on the issue. The funny thing about the response is not only were they unable to help with any new information bu they did tell my friend that what I was doing with the D3S was impossible according to Nikon's official specs. D3S Dynamic-area AF or Auto-area AF modes do not officially work with a 1.7x or 2x on the Nikon AF-S NIKKOR 500mm f/4G ED VR II.
The D4 and D800E used in all of the above have the newest firmware installed, D4 firmware A: 1.01 / B:1.01 and D800E firmware A: 1.00 / B:1.01 respectively.
Update June 9th
Edited the first section of this post for clarity.
Today I tried a Sigma 2X TC on a Nikon AF-S NIKKOR 500mm f/4G ED VR II with a D4 and 3D tracking mode was indicated but the combination was not compatible (problems with focus pumping). I did not try the Sigma 2X on a D800.
A > 1.01
B > 1.01
L > 1.004
A > 1.00
B > 1.01
L > 1.004
Leave a comment below if you have any questions or comments about this issue.
If you would like to learn more about Nikon 3D AF and related tech see these links to Nikon USA
D800 User's manual at Nikon USA:
D4 user's manual at Nikon USA:
More on 3D and 51 point AF at Nikon USA's site:
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