Hi Guys just got a new 2nd D4S body.
I have a Sigma lens older 150-500mm lens. I use this lens for shooting soccer. I use it with Nikon D7100 and D750.
The autofocus works fine with these models.
I got a new body Nikon D4S and Autofocus will not work at all.
I put my lens on my friends Nikon D4S and it will not work for his camera.
I then put my lens on a Nikon D6S of another friend and it works on D6S?
Is this a software/firmware issue in the D4S?
The lens is older so I do not think it can be docked to the Sigma docking usb.
Any help would be appreciated
Andy O'Connell
Dublin, IRELAND