Shutterspeeds/angels for fast panning

In terms of shutter angels.
What angel/speed would you choose to avoid choppy pics when filming a boat race where water constantly passes in a panning motion?

Would you go above or below 90?
I dont wont it to be too blurry, but still be certain that i wont get any choppy material.

Anyone with hands on experience with that kind of shooting?

Are these fast owner boats or sailboats? For power boat race, I would shoot 1080p60 or 720p60 to get fast frame rates, 180-160is shuttle angle shows work fine. If it is a sail boat race, a little more relaxed pace, that 1080p30 at around 180- degree shuttle angle should be fine. A 30fps rate with 180 shutter is 60th second shutter speed, so the waves should look fine, if you want smoother water motion, go to a larger shutter angle, like 220-degrees, to get a slower shutter speed, which will blur the waves more.
Cheers

Sorry, forgot to mention its with the pocket camera, so no higher than 30 fps here.
And its powerboats up to 150 mph.
Goes like this
Doing it for the third time now, but i keep forgetting my settings every year, lol

But 180 is 1/48, so if i shoot 30p, i should do 144 or 72 then?

The shutter speed is based in gate angle and fps. So at 24fps, 180-degrees is 1/48th Sec. But at 30fps, a 180-degree shutter is closer to a 1/60th Sec shutter, so pans or fast moving action will look smoother. Given you are using a Poclet camera, 1080p30 is your highest frame rate, so,Imwould use that as a starting point, and vary the shutter angle to get the look you want. For fast moving action like this, you might consider a slightly faster shutter speed, 172 or even 144-degree shutter angle. If you want more motion blur, than open up the shutter angle for a slower shiputter speed.
Cheers

In my opinion almost everything you did last year will look fine recorded in 30p. There are only a small number of shot types here:
When you are close to the moving speedboats, you are airborne and for the most part you are matching their speed so the boats are relatively travelling at zero mph for the observer. The waves are going -150 mph but having a nice big blur on them is highly desirable to give the sense of the boat speed. You could use 30p with a 270 degree shutter angle and look great.

When you are in the helicopter and the helicopter is in frame, there's the rotor blades to consider. I didn't really like seeing those blades 'sharp' as they rotate. Again a nice blur giving the illusion of fast movement would be more aesthetically pleasing. If you know the rpm of the rotor, you can calculate an appropriate shutter angle to give the blade a pleasing blur.

The shots of people on land can be 'normal' most of the time. Since they're not moving much you can play with larger or smaller shutter angles for effect. If you were doing a nighttime music concert, a small angle like 90 degrees seems to be the current cliché so it could be appropriate, to simulate the strobe of a nightclub. But personally I feel sharp images in video are often out of place generally.

Takeaway: embrace blur when shooting all kinds of motion. Our brain will add the detail magically where it's needed. A 150mph speedboat can be shot with a 360 degree shutter if your speed matches the boat.

I'm assuming here the camera is stabilized when airborne so the camera isn't feeling the vibrations of the helicopter etc.


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Thanks guys, for the input.
My only concern is the passing water in the high speed scenes, i just want to eliminate choppy footage and stuttering that looks like slow memory card.

Think i will go for a 180 at 30p here then, so im safe...

Having shot a number of high speed motor rallies from low flying helicopters, IMO, there's nothing more visually appalling than unnecessarily high shutter speeds applied to moving objects. The followed image may be crisp but the fast moving backgrounds will appear stuttering and strobe like. A little bit of motion blur on the background whist maintaining a sharp subject is always a compromise. Much of my work was done in 50i at 1/50th so in your case, 30P at 180 should be ideal.

A good reference: http://tessive.com/tech-blog/2015/1/22/ ... d-strobing

So i went out and bought a Micro cinema today, nut sure if it was necessary, but now i can shoot in 60p, but then 180 angle- 1/120s might be to fast shutter for this?
Maybe i should choose 360 degr then? Im a little confused here now...

You have 270 and 324 as other options to getting more motion blur, I would try them all out to see what you like. 360-degree is a bit extreme, but works for situations like romantic dance scenes, I think it would be a bit too blurry of motion for fast moving subjects like the speed boat race. A good EVF will pair nicely with the Micro for outdoor shooting too. 1080p60 is going to give you more motion control options too, as well as reducing the outdoor exposure, somless ND filtering is needed too (you will still need some filters, but not as much, depending on the shutter angel you end up using, of course.
Cheers, and congrats on the new camera, I enjoy the one I got very much..

Yea, thanks.

Im using a variable ND filter, so i have full controll.
I read that the best dynamic range is with 800 iso?
Better step it down then...
So 270 on 60p will be around 1/90?
I think 180 will be to fast...

Good, yes it is around 1/90th, halfway between 69th and 120th at 180-degree, so is a nice comprise shutter speed. I have used this one several times, to get nice, natural looking motion. You really need to test the camera with the different settings, and see which one you like.
Cheers and good luck