Jack- I see where no one has responded yet so I’ll pass on some black level information that I have learned.
7.5 Black level (setup) is a U.S. analog issue. FCP operates in the digital domain and works at 0 black level. Most U.S. consumer analog equipment (VHS, DVD, etc.) delivers video with a 7.5 black level. Quicktime is digital so it is a native
0 black level. Now having said that there are issues playing Quicktime on a Mac and exporting them and playing them on a windows machine. Windows and Mac have different native Gamma levels and the what looks great on a Mac looks dark on a PC.
But for more info on black levels check the following website:
https://www.kenstone.net/fcp_homepage/video_levels_nattress.html
Graeme is the man.
Jerry
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