This article is from the rec.arts.movies.tech FAQ, by Scott E. Norwood snorwood@nyx.nyx.net with numerous contributions by others.
Frames per foot: 16mm - 40 35mm - 16 70mm - 12.8 /------------------------------------------------------------------\ | Time | Reg. 8mm | Sup. 8mm | 16mm | 35mm | |----------|-------------|-------------|-------------|-------------| | 1 sec. | 24 frames | 24 frames | 24 frames | 24 frames | | | 3.6 inches | 4 inches | 7.2 inches | 18 inches | |----------|-------------|-------------|-------------|-------------| | 10 sec. | 3 feet | 3 1/3 feet | 6 feet | 15 feet | |----------|-------------|-------------|-------------|-------------| | 30 sec. | 9 feet | 10 feet | 18 feet | 45 feet | |----------|-------------|-------------|-------------|-------------| | 1 min. | 18 feet | 20 feet | 36 feet | 90 feet | |----------|-------------|-------------|-------------|-------------| | 3 min. | 54 feet | 60 feet | 108 feet | 270 feet | |----------|-------------|-------------|-------------|-------------| | 5 min. | 90 feet | 100 feet | 180 feet | 450 feet | |----------|-------------|-------------|-------------|-------------| | 10 min. | 180 feet | 200 feet | 360 feet | 900 feet | |----------|-------------|-------------|-------------|-------------| | 20 min. | 360 feet | 400 feet | 720 feet | 1800 feet | |----------|-------------|-------------|-------------|-------------| | 30 min. | 540 feet | 600 feet | 1080 feet | 2700 feet | \------------------------------------------------------------------/
 
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