17-09-2026, 05:57 PM
(17-09-2026, 04:10 PM)Mike Watterson Wrote: Before sound the movie was shot as slow as possible to still give illusion, so 14 to 20 fps.
Don't forget also, the making of the film!
With 16fps, the maximum each frame can possibly be exposed is 62.5 milliseconds - allowing time for the camera shutter to blank off, and the film to be advanced for the next frame, the maximum exposure time in practice is quite a bit less than this.
This was a serious limitation due to film sensitivity. The only solution was to limit the number of frames per second, but in projection, show each frame more than once to reduce flicker.
By the time sound came along in the 1920's, photographic chemistry had advanced, improved film emulsions with more sensitivity were available, to the point that a new standard could be established - hence 24fps to be compatible with projector gearing etc.
