When I go to pro mode in my phone camera app, I see that the shutter speed can go all the way up to 1/4000 seconds. Why can’t I take slow motion video up to 4000fps? Would it simply take too much storage space?
In: Technology
Shutter speed is how long each frame is exposed for.
So if your shutter speed was 1/60. That means each frame of your video is exposed for 1/60th is a second.
Your frame rate is how many frames are on each second of a video.
Both are very similar but not quite the same.
You can expose the pixels for a period as short as 1/4000 of a second. That doesn’t mean that you can process and save 4000 such images per second – this is the limiting factor in slow motion. This is why, by reducing the total pixel count, slow motion cameras can improve their maximum fps; they have less image to process and save.
Shutter speed refers to how long the light is allowed per image. 1/4000 of a second all the way to 2 or or 10 seconds even. It has nothing to do with videos frame rate.
Frame rate is how many of those images are shown per second of video.
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