Francisco Valdez Posted January 20, 2004 Share Posted January 20, 2004 I've never gotten a moire effect on any of my footage but that's because my art department and me are overly cautious about it. The thing is I want stop being cautious and start being conscious about it. I would like to know... What should I avoid? What are my limits? and does it vary from 35mm to 16mm and video? If anyone can give me a hand on this I would really appreciate it. Thanks, Francisco Link to comment Share on other sites More sharing options...
Alvin Pingol Posted January 20, 2004 Share Posted January 20, 2004 Erhm... someone please correct me if I'm wrong, but I don't believe Moire patterns appear when shooting film? (As I understand, film, unlike video, has no fixed pixel grid, just grains that are random from frame to frame.) Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted January 21, 2004 Premium Member Share Posted January 21, 2004 Hi, It won't appear on film, no, but it will appear on film transferred to video, so it's as well to be sure. Phil Link to comment Share on other sites More sharing options...
IBL Posted January 27, 2004 Share Posted January 27, 2004 Moire should not appear on film but may appear on the video transfer however good non-linear editing packages can remove moire so moire removal is now dealt with post-production which means that actors can wear twead again.... .... not that twead looks great but anyway :P Link to comment Share on other sites More sharing options...
Premium Member John Pytlak RIP Posted January 28, 2004 Premium Member Share Posted January 28, 2004 Moire is a form of "aliasing", where the regular patterns in the scene (tweed, venetian blinds, screen doors) interacts with the fixed array of the camera CCDs or video display device. "Filtering" to reduce aliasing actually reduces the sharpness of the image to eliminate the fine detail causing the aliasing (Nyquist criteria). So a camera with 1920 x 1080 pixel sensors will have less than half that resolution when the normal "anti-aliasing" filtration is used. Link to comment Share on other sites More sharing options...
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