I shot one clip (test shot for later project) using my EX3 (720p50). in final cut 7 i sent one clip to motion 4 just to slow it down using Optical Flow (30%). the result wasn't pleasant as i got some kind like a goest or mirage behind the moving subject. I trashed the preferences, but that didn't change anything.in the clip: I'm moving my daughter up and down while camera locked down on tripod. the clip is 14sec long and took 3 sec to finish processing.
Thanks for the replies
I've had optical flow added in few deferent formats ( DV,HDV,HD) and in deferent ways (subject moving fast or slow, camera fixed or moving...) ..I always have the same result, the goest like behind the moving subject !!