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Can’t get to 180 degree shutter, is it worth getting closer?

Started 7 months ago | Questions thread
John Sheehy Forum Pro • Posts: 26,698
Re: Shoot at 50 fps and Don't Worry About High Shutter Speeds

Markr041 wrote:

timmytooltime wrote:

Hi folks,

I have a 3-5 stop vnd for my iPhone 12 Pro and it often doesn’t cut enough light to get me down to a 180 degree shutter angle. Is it worth lowering the shutter as much as possible to get as close to a 180 degree shutter angle or not bothering if I can’t get down that low?

I film in 25p mostly, so I’m aiming for 1/50. Is it worth bringing it down to say 1/400 or 1/200 or should I not bother if I’m still 2-3 stops over and just leave it in auto with no nd?

Thanks in advance,

Tim.

Ok, I'll ask it. If you are concerned about depicting motion well, why not shoot at 50 fps? Then high shutter speeds will NOT result for the most part with bad-looking motion. You can leave shutter speed on auto and not have to worry,

Ideally, we'd be capturing at hundreds of frames per second and deciding what to do with them in post. If you shot at 360fps, you could use ~1/360 shutter speed which would offer stable still extraction, and the ability for you to choose any slow-cadence shutter angle by dropping frames and adding the rest. Unless there is strobing close to half the framerate (around 180Hz on a 360fps capture), the editing capabilities would be virtually analog, temporally. 60 or 50 cycle strobing would not be an issue.

Of course, technology is not there yet in making this practical for most of us, as most high framerates in affordable, easily portable cameras take quality-sacrificing liberties like line-skipping, and/or are very low-res.

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Beware of correct answers to wrong questions.
John
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