Time stretch won’t stretch over 3 seconds, why?

[Ryan Elder]

Sorry, youtube wouldn’t allow me to have two of the same video, so I had to take the previous down. But this one definitely has blur in it for sure in both shots then?

[Steve Bentley]

I would say so – to my eye it needs more, but it’s not killing me. I don’t think any client would call you on it.

[Ryan Elder]

Okay thanks. I’m more use to editing but this client wants me to do more effects than what I am use to.

I took footage from the actual wheel of fortune show and then changed it around. However, isn’t the show wheel of fortune shot at a 180 degree motion blur? Cause if so, why would the new FX wheel, need a higher motion blur than the show?

[Steve Bentley]

There is no set angle for the shutter to be set at in filming – its all a dance between how much light you have to work with, the F stop you need for depth of field, the “speed” of the film or CCD and the kind of effect you want (the battles in Gladiator were shot with a very very narrow angle of shutter and tons of light to give it a strobey look and reduce the motion blur to nill).
But Broadcast cameras used in a studio don’t really have a shutter per se. And even if they did I doubt it would be a rotary one. You match the blur so it matches by eye – the shutter angle is just a number so you know if you need more, you need to increase the angle. The great thing about this is if you really want a lot you can go to 1000 or more, where a real shutter can’t be open more than all the way (360).
We get a lot of camera data when we’re doing match moves but we rarely get shutter data even when its on film. So the eyeball and reference is the best judge.
If the shot is still bugging you it’s probably the mismatch between the speed of the animated element and the real wheel. The blur you have done is very passable.

[Ryan Elder]

Okay thank you very much for the help. I rendered out a high quality version of what I have so far to be safe, but could tinker with it some more down the road, when the project is all finished and I have fresh eyes on the whole thing.

I thought that almost all TV shows choose the 180 degree shutter speed specifically, to keep that same look all the time. Even when I went to film school and worked with other people on shoots, they filmmakers choose to shoot 180 for the entire movie to keep a consistent look. If the camera needs to adjust to the light, they will usually adjust the gain, rather than the shutter speed cause the gain can be adjusted while still looking more consistent compared to shutter speed, no?

I tried lining up the wheel with the peg more but the wheel sort of jolts in a way I don’t like when I do that. But I can keep playing around with it.

[Steve Bentley]

in AE you might be able to track a few pegs to get a rotation speed out of it. I say might because the center of the circle (the rotation point) is outside frame all the time, so not sure if that would work.