Chapter 13  Keyframe Effects
801
Keyframes
Keyframe duration: This is the time from the keyframe to the next keyframe. 
You can set this time in the keyframe control block. (See “Setting the 
Keyframe Duration” (page 845).)
In constant duration mode (see page 800), it is not possible to change the 
keyframe duration setting.
Effect duration: This is the total execution time of the effect, from the first 
keyframe to the last. You can set this time in the keyframe control block.
(See “Setting the Effect Duration” (page 846).)
When you change the effect duration, the keyframe duration for each 
keyframe in the effect is automatically recalculated proportionally.
Schematic view of keyframe duration and effect duration
The effect duration may also be changed by inserting or deleting keyframes.
Changes in the effect duration caused by inserting a keyframe
• When the effect is stopped on a keyframe, inserting a keyframe increases the 
effect duration by the duration of the inserted keyframe.
• When the effect is stopped between two keyframes, inserting a keyframe 
does not change the effect duration.
Keyframe duration
Keyframe number
 Effect duration