Nikon made two major announcements for video shooters today. First, they released a dedicated (and long overdue) 3D Look Up Table (LUT) for the flat N-Log profile, making it much easier to post-process video footage from the Z6 and Z7. And second, they quietly announced that the long-awaited RAW video update for the Z Series will not be a free firmware update. It’s a mixed bag for fans of the full-frame mirrorless Z Series today. On the positive side is…