Nikon has just introduced its own N-Log 3D LUT for its full format DSLR Nikon D780 for free download. Like the mirrorless full frame Nikon Z6 and Z7, the Nikon D780 DSLR also outputs a 10 bit log signal optionally on HDMI. Here more information about the current 
Nikon D780 DSLR on slashCAM
The REC 709 LUT is located in the 3D-LUT folder together with the previous Z6 and Z6 LUTs as .cube file with the title D780_N-Log-Full_to_REC709-Full_33_V01-00.cube
The LUT should already be tested in common post production tools. This includes: Adobe Premiere Pro CC, Apple Final Cut Pro X and Blackmagic Design DaVinci Resolve 16.(Now only a ProRes RAW to Nikon N-Log transformation for the Nikon Z6/Nikon Z7 ProRes Raw material is missing)
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