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Old 01-05-2009, 02:20 PM   #7
Lee Stewart
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Join Date: Jan 2007
Location: Ft. Lauderdale, FL
Age: 58
Posts: 25,179
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Quote:
Originally Posted by teranova View Post
Thanks, I figured you would know! On another topic: Several years ago Roger Ebert demonstrated a new projection process called "MaxiVision 48" where the film is projected at 48 fps instead of the usual 24 frames per second. It showed a panel truck filmed at 24 fps passing from right to left and the lettering and signage on the side of the van was completely blurred. Then he showed it a 48 fps and you could read the name of the company and the decorative logo (I think it was for a flower shop)
I believe it would eliminate the wagon wheel effect where the spokes of stagecoaches and chuck wagons, in Westerns, appear to rotate backward as the camera can't capture the full motion at 24 fps. The process would also eliminate blurring that occurs in fast action scenes.
The main drawback, I would think, would be that it would use twice as much expensive film stock. I haven't heard anything more about its development or if it ever caught on with the motion picture industry.
Today - each frame of film is shown 2X for 48FPS. If it was 24 FPS you would see very bad flicker.

IMAX made a short once in 48FPS and called the process IMAX HD

Showscan was 70mm @ 60 FPS.

The original Todd-AO (70mm) was 30 FPS (each shown 2X).

They will be moving away from film and using digital cameras once the number of digital cinemas increases sharply.

My Avatar is the Panavision digital camera.

Here is a link to some of the digital cameras in use now:

http://cinetaur.googlepages.com/hd-2...roduction-link
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