Sigma lenses horribly out of focus?

Started 9 months ago | Discussions thread
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Tonne Junior Member • Posts: 26
Sigma lenses horribly out of focus?

Replaced my D810 with an D850 two weeks ago. Just started checking sharpness of my lenses. Same result as with my D810. Nikkor lenses are sharp but my two Sigma ART lenses needs loads of calibration. Tried searching for previous discussions of this before posting but the search function here could be improved

 Tonne's gear list:Tonne's gear list
Nikon AF-S Nikkor 24-120mm f/4G ED VR Nikon D850 Sigma 70-200mm F2.8 EX DG OS HSM Sigma 105mm F2.8 EX DG OS HSM Nikon AF-S Nikkor 50mm f/1.8G +4 more
Nikon D810 Nikon D850
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