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Re: DVD question: NTSC/PAL
Posted: Sat Oct 11, 2003 6:53 pm
by nosey
That's something to be thankful for. At least it's one over the Yanks!!!
Re: NTSC/PAL
Posted: Sat Oct 11, 2003 11:45 pm
by mart
You are now entering a fascinating arena for discussion.
Video vs. Film.
When you watch a film (ie celluloid) projected onto a screen, you see the complete image in one "flash" 24 times a second.
When you watch a video you see an image which is scanned from top to bottom 50 times a second.
The two processes may have different physiological results in the retina-optic nerve-brain transmission chain.
The only work I know of relates to filming speeds; I think it was Douglas Trumbull the cinematographer who filmed sequences at 2/3 times the normal speed and its said that the viewers involvement is much greater. It does of course use up far more film.
Mart
Warning: Trumball trivia.
Posted: Sun Oct 12, 2003 8:52 am
by The Last Word
Yes, he did. The process was called Showscan: 70mm stock shown at 60 frames per second for extreme clarity. Had a trial run in his underrated Brainstorm (a film years ahead of its time), but it never caught on. It seems Trumball grew tired of actual film-making and involved himself with IMAX projects and studio/theme-park amusements (Back to the Future..the ride. That sort of thing). A colossal FX legend, of course.
--
"Let's do it..."
Re: NTSC/PAL
Posted: Sun Oct 12, 2003 4:36 pm
by mart
Surely film is standard at 16fps(silent) and 24fps(sound).
Trumball's experiment filmed and projected at a faster speed as TLW has just confirmed, so the viewer saw the action at normal "speed".
Mart
Re: DVD question: NTSC/PAL
Posted: Tue Oct 14, 2003 5:36 pm
by NOBBY
Guys,
After everything that has been said remember this, If the source is of Digital Quality and Digitally Encoded MPEG really the question of which is better is pretty achademic. If i ever want to backup any of my DVD's i use software from the internet, and bearing in mind the equipment used to Burn my DVD's i defy anybody to see the difference.
Oh by the way you can if you so wish convert any NTSC Source to PAL and vice versa, even changing region coding.