D800 firmware 1.11 breaks Sigma lens AF


boxerfan

Member
Oct 19, 2008
111
0
16
Singapore
I just updated my D800 to firmware 1.11, and it broke the Sigma Art35 lens AF.
AF is working fine with Nikon lenses.
Anyone kena this problem before?

I do not have the Sigma USB dock, if a kind soul is willing to loan me the dock to (or help me) update the Sigma lens firmware, kindly PM me. Thanks!
If no choice, I'll fall back to the 1.10 firmware.
 

one eye jack

Senior Member
Jun 11, 2011
998
49
28
I read that it works for D850, that is you take the battery out and wait a few minutes and then reboot the camera then sigma lens will work again.
 

thoongeng

Senior Member
Jan 26, 2010
1,410
49
48
If you rolled back the firmware to 1.10 and autofocus for the Sigma lens works again, then you have confirmed that you need update the Sigma lens firmware. You can either get the USB dock, or bring it to Sigma Service Centre to update
 

boxerfan

Member
Oct 19, 2008
111
0
16
Singapore
I read that it works for D850, that is you take the battery out and wait a few minutes and then reboot the camera then sigma lens will work again.
battery out power down reboot doesn’t help
 

boxerfan

Member
Oct 19, 2008
111
0
16
Singapore
If you rolled back the firmware to 1.10 and autofocus for the Sigma lens works again, then you have confirmed that you need update the Sigma lens firmware. You can either get the USB dock, or bring it to Sigma Service Centre to update
yeah, i rolled back to 1.10 last night, and Art35 can AF again.