D850 Autofocus Problems With Third Party Lenses

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Amrinder Randhawa
Amrinder Randhawa New Member • Posts: 6
D850 Autofocus Problems With Third Party Lenses

Hello,

I just received my D850 but I am having issues with autofocus while in live view when using my Sigma 70mm F2.8 EX DG Macro.

It does not autofocus at all in live view. Not half pressing the shutter button, not touch to focus and neither AF on button.

Is anyone else having the same problems with any other third party lenses. Just to mention the Sigma lens does not have an inbuilt focusing motor. But neither does my Nikkor 85mm 1.4 AF-D and it works fine.

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I always thought good photos were like good jokes. If you have to explain it, it just isn’t that good.

 Amrinder Randhawa's gear list:Amrinder Randhawa's gear list
Nikon D90 Nikon D850 Nikon AF-S Nikkor 70-200mm f/2.8G ED VR Nikon AF-S Nikkor 24-70mm f/2.8G ED Nikon AF Nikkor 50mm f/1.8D +4 more
Nikon D850 Sigma 70mm F2.8 EX DG Macro
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