2 ms·
What’s the refresh rate of film projectors? The idea sounds good but are they capable of anything above 60hz?
by haunter 3y ago
What’s the refresh rate of film projectors? The idea sounds good but are they capable of anything above 60hz?
- reaperman 3y agoI know this first part sounds pedantic, but bear with me. You can't use a "film" projector for this, because there's no physical film strip. So this can only be done in a theater that has a digital projector (or can have one set up, if it's not usually there). The most widely used "3D" digital projector for theaters runs at a "refresh rate" of 144Hz, alternating between left-eye and right-eye. Refresh rate is not a frame rate, which for movies is typically still 24fps, but flashing the same frame on and off more often than 24Hz reduces the perception of light/dark "flickering". I assume that digital projectors can support a frame rate equal to their refresh rate, but I may be mistaken. https://en.wikipedia.org/wiki/RealD_3D https://en.wikipedia.org/wiki/RealD_3D Actual film projectors are incredible engineering - the film actually has to stop for a split second on each frame while the light shutter is open. For understanding film projectors, I really love sharing this video with my friends: https://www.youtube.com/watch?v=En__V0oEJsU https://www.youtube.com/watch?v=En__V0oEJsU