A:Answer The remote appears to be a knockoff of the Nikon ML-L3 infrared remote. I looked at the Nikon product page for that remote and it's not showing the D850 as supported by the name brand IR remote, so I don't suspect the Insignia remote will work. I won't post the Nikon URL here, but search the Nikon site for ML-L3 to see the product page and supported product list.