> The rolling shutter is also why stills from gopro videos never quite live up to how clear the videos look in motion.
I've thought about this as well. I always assumed the lack of clarity of single frames extracted from video material is because the eye/brain incorporates several images shown really quick in succession into one whole image. So when only a single frame is shown, there's not as much information in that as, say, 10 frames shown quickly in succession.
That's also because of the 'shutter speed' or 'shutter angle'. Basically each frame stays 'open' for a certain amount of time to let the light in. Anything slower than say 1/500s is going to introduce motion blur into the frame.
Shutter Speed/Angle are also creative choices. Anything that is faster than 1/50th (180 degree shutter angle) will introduce a 'staccato' effect to the video. Anything slower will be mushy/blurry.
I've thought about this as well. I always assumed the lack of clarity of single frames extracted from video material is because the eye/brain incorporates several images shown really quick in succession into one whole image. So when only a single frame is shown, there's not as much information in that as, say, 10 frames shown quickly in succession.