The latest Nikon Z6/Z7 firmware update version 3.20 unlocked Blackmagic RAW support - Nikon Rumors
Amazon.com: Nikon Z7 / Z6 Experience - The Still Photography Guide to Operation and Image Creation with the Nikon Z7 and Nikon Z6: Updated for Firmware 3.31 eBook : Klostermann, Douglas, Klostermann, Douglas: Books