Et objekt bevæger sig over skærmen men det “flicker”. Why?
Fænomenet hedder “judder”.
“Although judder has many contributing factors, it is ultimately determined by how fast a scene moves from one side of the screen to the other. The rule of thumb is to pan no faster than a full image width every seven seconds, otherwise judder will become too detrimental. This rule is especially simple and powerful because it applies regardless of camera lens, model or sensor size.”
– RED101
“The eye is capable of seeing the individual frames when there is very fast motion present with an insufficient frame rate. Conversely if you had an animation of a very slow moving small object you might be able to get away with a very low frame rate before any judder is noticed.
One can help alleviate judder with motion blur…..However these solutions are never going to work as effectively as what Dave suggested – increasing the frame rate or reducing the speed of your animated motion.
-Graham Macfarlane, Creative Cow
The seven second rule:
For any object crossing the width of the frame,it should take 7 seconds or more to be smooth
Det kan både være i en optagelse eller i en AE animation.
/Volumes/Stock Footage/Tutorials/ASC_-_American_Cinematographer_Manual.pdf
og en artikel fra RED:
http://www.red.com/learn/red-101/camera-panning-speed