Trumbull also did research into frame rate, running a series of tests with 35 mm stock filmed and projected at various speeds, shown to audiences who were instrumented to biometrically test their responses. He found that as the frame rate increased, so did the viewer's emotional reaction.
Trumbull discovered that although viewers see smooth motion from film displayed at 24 frames per second (fps), the standard in motion pictures for decades, they are subconsciously still aware of the flicker. This awareness reduces the emotional impact of the film. As the speed of projection ramped up, so did the emotional response, peaking at 72 fps. After that speed, no further improvements were noted.
Originally Posted by Valkyre
. (lol - " Hobbit slow motion 2,564 fps / Bullet-time HFR. 2 !")
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