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60fps at 1/60 shutter speed to render at 24fps with normal motion blur

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Oscar Lee
60fps at 1/60 shutter speed to render at 24fps with normal motion blur
on Mar 10, 2020 at 6:21:20 pm

Hi. I don't know what scenes will be in slow mo, so I want to film everything at 60fps. I want the final video running at 24fps. If I use the shutter speed rule, I should record 60fps at 1/120ss, the problem is that, when converting to 24fps, this gives me a stacato effect, since the end result would be as if I had recorded 24fps at 1/120, giving me an ugly motion blur. So I thought, how about I shoot at 60fps but with a shutter speed of 1/60? break the shutter speed rule with the intention that when converting to 24fps the motion blur is normal. Somebody made it? Do you think it works? Will I be able to use the material to create slow motion?


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Blaise Douros
Re: 60fps at 1/60 shutter speed to render at 24fps with normal motion blur
on Mar 13, 2020 at 12:09:13 am

It will probably pull down better to 24p at normal speeds, but when you do a frame-rate conversion to 40% speed, it will not look as crisp--there will be too much motion blur at 1/60.

Generally speaking, the other method I've occasionally used is to film at 120p, use frame-blending on realtime shots, and then at 120p 1/120 shutter, it starts getting crisp enough to work.

My vote: shoot some test footage. See if the 1/60 shutter works for you. That's really the only way to be able to tell.


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