Update slides/ws-video/slides.md

slides/ws-video/slides.md

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+### Framerate
+
+Captured pictures/frames per second - FPS
+
+- Capture framerate is set in camera and can be changed to create effects like slow motion in playback
+- Playback framerate is set in the editing software and detemains at wich speed the frames are played back
+
+- normal motion: capture framerate 30fps and playback framerate 30fps -> 1x speed
+- slow motion: capture framerate 60fps and playback framerate 30fps -> 0,5x speed
+- fast motion: capture framerate 15fps and playback framerate 30fps -> 2x speed
+
+|||
+
+### Common framerates
+
+- Cinema is mostly working with 24fps
+
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+
 ### Exposure
 
 <img data-src="https://git.noc.ruhr-uni-bochum.de/makerspace/homepage/-/raw/main/slides/ws-video/exposure.png" width="50%"/>