Gig coming up that needs for a bit slow motion (60D)... Which settings?

S

Stab

Well-known member
Next week I will be shooting a commercial to enter a competition with my new company and it has to be good :)

The first scene I want to make a rider (dolly) in slowmotion (like 50-60% speed) for an establishment shot of the situation.

Now I know that the 60 fps 720p mode of the 60D (and other Canons) is actually not that good and gives much more aliasing and problems... Although it would be a good frame rate to get the desired slow motion effect I think.

So what do you recommend? Which settings?
And is shooting on 1080p 30f/s maybe also an option? Still with 180 degree shutter rule?

Thanks for your advice!
 
Shoot 720/60p
Get your shutter crazy high... Around 1/500 or above will look real nice

Take it into cinema tool and convert to 24p
 
jordy2324 said:
Shoot 720/60p
Get your shutter crazy high... Around 1/500 or above will look real nice

Take it into cinema tool and convert to 24p
Click to expand...

Is that really necesarry for only a 50% slowmotion effect? So shutter speed 1/120th is not sufficient?
 
mrchirster said:
what difference makes a crazy high shutter speed?
i usually shoot 720p50 with the shutter set to 100
Click to expand...

I'm not sure if a high shutter speed would be better than 1/100 sec under normal slow motion playback, but with Twixter the more defined the frames are the more detailed the computer can morph and write the in between frames.
 
ROCKMORE said:
I'm not sure if a high shutter speed would be better than 1/100 sec under normal slow motion playback, but with Twixter the more defined the frames are the more detailed the computer can morph and write the in between frames.
Click to expand...

Depending on how fast your subject is moving, this DOES make a difference. Test it out for yourself, I have. Shoot something at 1/100, then crank the shutter to something like 500 or above and adjust the iso/apperature so it "looks" the same exposure-wise.
What you'll find is essentially like photography... if you're around 1/100, go into your editor and look frame-by-frame after you've slowed it down. Not very sharp. Then, take a frame-by-frame look at something 500 or above... MUCH sharper.

However, you can usually only get away with the high shutter outside or if you have major control over lighting.
 
So I will be shooting at 50 fps and slow it down to 24 fps in Final Cut, which makes it about 45% of the speed.

What should the shutterspeed be for the optimal slow motion effect? 1/100? Or faster?
 
Well, it depends on the intended fps look, if you're planning to slow down to 50%, therefore 100fps, then the 180º shutter is 1/200.

Don't be afraid to use shutter speed creatively though. Test, test, test.
 
Do some serious tests. Here's what I've learned but I still need to test more.
1) 720p 5994 shoot shutter at least 120, go higher if you are using twixtor (explained below)
2) slow mo works great for the setting above. Once you start to tweak speed in your editing program it throws off the fluidity of the look.
3) If you want a super slow mo - say 10 percent shoot with 720p 5994 then do the usual conforming in cinema tools then slow it down more with twixtor. Twixtor works great with high shutter speeds because it has to interpolate images and the more sharp frames it has in the movement the better. If you are blurred too much you'll see nothing but a slow mo blur.
5) if you use twixtor it is highly recommended to - lock the camera down (no dolly ) keep the background simple such as sky or plain wall. If you pan or have too much detail while moving you'll see that twixtor can't interpolate the image and will kind of warp. It'll look like a force field.
6) of course light plenty for slow mo.

Don't be fooled. Go on youtube or vimeo and looked up the twixtor videos. You might see some on youtube in lowres that look cool but if you look in high res you'll see the warping. In the end you'll see the guys who did it right shot it with simpler backgrounds and locked off cameras. All in all there will always be some artifacts but you can do a decent amount to reduce it.

Here is an example.
http://www.youtube.com/watch?v=vaPsBDl8edU&feature=related
 
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