2.2 gamma compensation required in the sequence (Y´C
uses a gamma of 2.2).
The problem with this default behavior is that RGB files are not always created with a
gamma of 1.8. For example, RGB files created on platforms other than Mac OS X often
have gamma correction designed to compensate for 2.2 in the monitor. In this case,
you can adjust the gamma level of your imported RGB clips.
Rendering and Video Processing Settings
To choose the gamma value applied to an imported file:
Choose Final Cut Pro > User Preferences, then click the Editing tab.
Choose one of the following options from the Gamma Level pop-up menu:
Â Source: If you have already adjusted the gamma of your media to work with previous
versions of Final Cut Pro, choose this option to ensure that clips appear the same as in
previous versions. This option uses QuickTime to interpret the gamma of imported
Â 1.8: Choose this option when importing media files created with the Mac OS or
created by an application in which you specified a gamma value of 1.8.
Â 2.2: Choose this option when importing media files created with non–Mac OS
systems or created by an application in which you specified a gamma value of 2.2.
Â Custom: Choose this option to enter any gamma value you wish in the Custom
Note: When you adjust the gamma of a clip within Final Cut Pro, the media file is not
modified; only the clip in the project is affected.
If you need to modify gamma for clips after importing, you can adjust the Gamma Level
property in the corresponding Browser column or in the Item Properties window. The
Gamma Level property is not shared between master and affiliate clips, so changing the
gamma for a master clip has no effect on the affiliate clips, and vice versa.
To change the Gamma Level property of a clip in the Item Properties window:
Select a clip in the Browser or in a sequence.
Choose Edit > Item Properties > Format (or press Command-9).
Do one of the following:
Â Control-click the value next to the Gamma Level property, then choose a predefined
gamma value for the clip (Source, 1.8, or 2.2) from the shortcut menu.
Â Click in the Gamma Level field and enter a gamma value or type “Source,” then
Tip: To see how a clip’s gamma affects its brightness, try changing the Gamma Level
property of a clip while viewing the clip in the Viewer or Canvas.
Real Time and Rendering
To view the Gamma Level column in the Browser:
Control-click in any column in the Browser, then choose Show Gamma Level from the
To change the Gamma Level property of a single clip in the Browser:
Select a clip in the Browser.
Click in the Gamma Level column next to the selected clip, enter a value between 0.01
and 10.00, then press Enter.
To change the Gamma Level property of multiple clips in the Browser:
Select multiple clips in the Browser.
Control-click in the Gamma Level column, then choose Source, 1.8, or 2.2 from the