On Wed, Mar 16, 2011 at 11:55 AM, Tim Bray <tb...@textuality.com> wrote:
> Shouldn't 30fps be good enough for most things excluding fast-moving > sports and so on? I'm a vidiot so maybe I have this backward... -T I think the rolling shutter is the bigger issue. In a rolling shutter camera, the different pixel rows of the sensor are exposed at different times, instead of the whole array being exposed simultaneously. This can lead to distortion of moving objects, or of the whole scene due to camera motion. Here's a video I recorded in my car using a handheld Kodak Zi8 compact video camera: http://vimeo.com/14142141 Due to the rolling shutter(*), camera motion due to bumps in the road leads to a vertical stretching or compression of the scene, like it was printed on rubber. It's pretty obvious in the overhead signs around 35-45 seconds, and in the car in front at around 1:10. (*) I typed "shitter" at first, which also seems appropriate. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
