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 p.1 #10 · Shutter speed and video... | |
Chris Sharp wrote:
So, shooting video at 1/200 would result in a less "blurry" sequence than video shot at 1/30th right? In other words, the ladder would have more motion blur to it I assume. Is this correct?
Not sure what you mean by the ladder, but yes, shooting at 1/200 will introduce less motion blur. However, where motion blur is shunned in photography, it's practically necessary in filmography. The motion blur gives you the sense of smooth motion in movies. When the shutter speed is too high, everything looks stilted and jittery (think of the D-Day sequence in Saving Private Ryan). You'll have to experiment with shutter speed and focal length to get the right mix.
jfulton wrote:
Actually, it is possible. I shoot 1/15 and 1/7.5 on with a 720p 60fps camera for effect or to compensate for computer flicker/roll. It can also be switched to record 30fps and utilizes the same shutter speeds.
You aren't shooting 30 frames per second with a shutter speed of 1/15 second/frame, because video cameras record in real-time, meaning that 1 second of footage corresponds to 1 second of time elapsing. To get an exposure of 1/15 sec per frame, you'll need 2 seconds of time: 1/15 seconds/frame * 30 frames = 2 seconds of time.
Now, I know that my camcorder can record at a frame rate of 1/15sec, but it records at 15fps (actually, it still records at 30fps, but it doubles each frame so that during playback, it only shows 15 unique frames per second). It can also utilize a shutter of 1/10sec, but it records at 10fps.
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