Apple Color 1.5 - Manual (Page 133)

Note: You can render your project out of Color using one of several high-quality
mastering codecs, regardless of the codec or level of compression that is used by the
source media. You can use the QuickTime Export Codecs pop-up menu to facilitate a
workflow where you import compressed media into Color and then export the corrected
output as uncompressed media before sending your project to Final Cut Pro. This way,
you reap the benefits of saving hard disk space and avoiding rerendering times up
front, while preserving all the quality of your high–bit depth adjustments when you
render your output media prior to sending your project back to Final Cut Pro. The
codecs most suitable for mastering include Apple Uncompressed 8-bit 4:2:2, Apple
Uncompressed 10-bit 4:2:2, Apple ProRes 422, and Apple ProRes 422 (HQ). For more
information, see
Compatible QuickTime Codecs for Output .
Broadcast Safe Settings
When color correcting any program destined for broadcast, it's important to obtain the
specific quality control (QC) guidelines from the broadcaster. There are varying standards
for the maximum and minimum allowed IRE, chroma, and composite amplitude, and
some broadcasters are more conservative than others.
The Broadcast Safe settings let you set up Color to limit the minimum and maximum
luma, chroma, and composite values of shots in your program. These settings are all
completely customizable to accommodate any QC standard and prevent QC violations.
• Broadcast Safe button: Turning on Broadcast Safe enables broadcast legalization for
the entire project, affecting both how it's displayed on your secondary display and
broadcast monitor and how it's rendered for final output. This button turns the following
settings on and off:
• Ceiling IRE: Specifies the maximum luma that's allowable, in analog IRE units. Signals
with luma above this limit will be limited to match this maximum value.
• Floor IRE: Specifies the minimum luma that's allowable, in analog IRE units. Signals
with luma below this limit will be limited to match this minimum value.
• Amplitude: This is not a limiting function. Instead, it lets you apply an adjustment to
the amplitude of the chroma. The default value of 0 results in no change.
133 Chapter 5 Configuring the Setup Room