Final Cut Transition
In Final Cut Pro X, the default transition duration is set in the Editing pane of Final Cut Pro
Preferences. When you apply a transition template to an edit point in the Final Cut Pro
timeline, the duration of the transition effect is modified to the default transition duration.
For example, in a Final Cut Pro Broadcast HD 1080 project (29.97 fps) with a default
transition duration of two seconds, an applied 300-frame transition template is compressed
to 60 frames (2 seconds at 29.97 fps).
To override the transition duration setting in Final Cut Pro Preferences, select the Override
FCP Duration checkbox in the Properties Inspector in Motion. If this checkbox is selected
when the transition is saved, the transition retains its original duration when added to
the Final Cut Pro project.
Whether the transition duration uses the Final Cut Pro default or is overridden, you can
adjust the in and out points of the transition in the Final Cut Pro Timeline.