Not A Speck Of
lvl.4
Flight distance : 666493 ft
United States
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Hey Flipperman,
What Donnie calls "blurry" is more often referred to as "motion blur" by pro videographers. It's something that occurs naturally with a lot of classic video equipment, but not with more modern / alternate video devices, such as a GoPro, a DSLR camera with video capability, and camera such as those on our P3s.
With DSLR camera especially, they've been dealing with this for years. With such a camera, one can set a lower shutter speed without ND filters using manual shutter controls, but that means having to compensate with a closed down lens aperture to get a proper exposure, so there's a trade off. (If you slowed down the shutter without compensating with another setting, you would over-expose the image, because you're letting in more light.)
The ND filters have been around for a long while for still photography, useful for purposes other than slowing down a shutter speed for video. And since they've been available for a long while, they because useful for video purposes right away, since DSLR photographers often already had them in the bag. So they use the ND filters to slow down the shutters, without having to use smaller lens apertures (which may or may not be undesirable).
But you can't change the lens aperture on the P3 camera, so you MUST use an ND filter if you want to slow down the shutter.
They're a new thing for UAV photography and without it, you're not going to get that same visual effect of motion that more closely resembles what motion looks like with our eyes.
The confusion of slow shutter speed vs. high frame rates: you can have some higher frame rates and still have slower shutter speed per frame. However, there's a limit: doing the math in your head, you can probably guess that the higher frame rate you go, the less likely you're going to be able to use a slower shutter, because the time between frames is too quick to allow it.
Also, the PolarPro filters have polarization versions of the ND filters, which will aid you if you're shooting around a lot of reflections on glass or water.
Chris
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