FAQ: Why does horizontal motion stutter (judder) in my movies, such as during pans?

If horizontal motion stutters or seems jerky, you may be experiencing "judder". See "Avoiding judder in motion graphics" by Rick Gerard for an explanation and solutions.

If you are seeing flickering in fine detail and vertical motion, you may be experiencing "twitter". See "Best practices for creating text and vector graphics for video" for an explanation and solutions.