Sony MVS-8000 User Manual page 128

Example 2: Flex Shadow is enabled on one channel only.
Trail
Recursively freezes the input video at regular intervals so that a trail of
afterimages is created. You can make the afterimages stardust trails.
Note
Of the three effects of trail, motion decay and keyframe strobe, only one can be
on at a time. When one of them is on, turning another of them on automatically
turns off the one that has been on.
Motion Decay
Blurs the motion of a moving video by creating afterimages of the moving
video. (See "Note" in the preceding section "Trail.")
128
Digital Multi Effects (DME)
Over Over Over
No combine shadow is set.
Over Over Over Under Under Under
Combine shadow is enabled.
Density is set to 100.00.
Video Video
Under Under Under
Shadow
Over Over Over
Combine shadow is enabled.
Density is set to 0.00.
Under Under Under