Aligning a Transition in the Timeline
You can place a transition so that it starts on, centers on, or ends on the edit point
between two clips in the Timeline. You should choose a transition alignment based on
the editorial effect you want to achieve:
 Starting on the cut: Choose this alignment if you want the last frame of the outgoing
clip to be fully visible before the transition begins.
Handle of incoming clip
Handle of outgoing clip
Edit point
Incoming clip
Outgoing clip
A transition starting
on the cut
Chapter 21
Adding Transitions
375
III
 Centered on the cut: Choose this alignment if you want the cut point between the
two clips to be the midpoint in the transition.
 Ending on the cut: Use this alignment if you want the first frame of the incoming clip
to be fully visible.