Basically, it is a “fail safe” for any color correction you may have missed. Go through primary color correction while minding your scopes and using the Color Corrector 3 Way. The Image overlays for excess luma and excess chroma in the View menu will get you into the zone. When adjusting Luma, you should see a tiny arrow pointing upward next to the check mark for 90-100 IRE. That’s just where you want to be. Chroma can be adjusted similarly using the Vectorscope and the Sat slider of the Color Corrector.
After you’ve gotten it into broadcast safe range using color correction for every clip in your sequence, the workflow is to nest the sequence first–and then drop the filter onto the nest as a “fail safe” incase there were any undetected frames of excess luma or chroma. Option+double click the nest and then click on the Filters tab to adjust the Broadcast safe settings.
Hopefully, that gives you on the workflow as I understand it. Anyone else use it differently?
Kevin Monahan
Author – Motion Graphics and Effects in Final Cut Pro
fcpworld.com