Seedling
Frame Rate and Shutter Angle
#camera#video#frame-rate#shutter-angle
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Video is a sequence of still images shown in quick succession. "How often" (frame rate) and "how long each frame is exposed" (shutter) decide almost everything about how video feels.
| Variable | What it controls |
|---|---|
| Frame rate | Temporal resolution (frames per second) |
| Shutter angle / speed | Motion blur per frame |
Change frame rate and you must change shutter to keep the same look. That's why film sets express shutter as an angle instead of a fraction — it solves the problem automatically.
24fps is a look; 60fps is precision. Shutter angle is fps-independent. 180° = 1/(2·fps) at any frame rate. Slow motion = raise capture fps, leave playback fps alone.