Theatrical Lighting Problem

musicvid10 wrote on 10/5/2009, 7:55 PM
A while back, we had a discussion about the pitfalls of using Intelligent Lighting with unfiltered dimmer packs and its implications for video.

Now I've been bitten by it. Please look at this SD clip and tell me if there's anything I can do about the pulsating LEDs. An effect or filter perhaps?
I could see the flickering live. A number of people said they could not.

If not, I can live with it; it's just an archive and will not be released.

Right click and "Save Link As"
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Comments

tumbleweed7 wrote on 10/5/2009, 10:37 PM


While not an effect or filter, you could try rendering at 15 fps...

Of course the result would give it a multi-media look, & may not really help with the flickering lights... just an idea....
farss wrote on 10/5/2009, 10:53 PM
I have dealt with a similar problem from shooting 50i in a 60Hz country. I was able to reduce the problem by adding motion blur. This will of course blur anything that moves.
So make two copies of the project, one with and one without the MB. During any pans or zooms reduce the MB to 0.
Then put each of the on their own tracks in a new project and use a mask to reveal moving people etc without the blur.
I should say I only did this for a couple of minutes of video. It worked but getting there was a lot of work.

Bob.
baysidebas wrote on 10/6/2009, 4:55 AM
Any of you old enough to remember the early days of standards conversion? You knew when a TV show on NTSC land had originated in PAL simply by the way the image blurred whenever there was any motion in the scene. Used to drive me bananas.
farss wrote on 10/6/2009, 5:25 AM
"Any of you old enough to remember the early days of standards conversion?"

Yes. Back then a standards converter was a monitor displaying NTSC with a PAL camera pointed at it. I think the monitor had a long persistance phosphor which explains the motion blur.

And by the way, if you thought PAL originated material looked bad you should have seen NTSC originated material in NSTC. The problem is one reason why the better content is still shot on film or 24p/25p HD.

Bob.
TheHappyFriar wrote on 10/6/2009, 8:12 AM
since it's an archive I'd leave it: maybe in a year or a decade a piece of software will be made to "fix" it. :)

musicvid10 wrote on 10/6/2009, 8:19 AM
Bob, good idea!
Since this was a 2-cam shoot, and the cutaway cam rarely shows the whole wall, I think I can apply some Motion Blur on the stationary cam footage, which (as you saw) is crappy anyway.

Then it should go fast in a multicam project.
I'll give it a try. I can always count on a variety of good suggestions here. Thanks!
musicvid10 wrote on 10/6/2009, 10:47 AM
Bob,
Motion blur worked!
But since multicam creates a single video track, I think I may have to render the stationary cam track with MB first, or create points at every take change.
Know of any way around this?
farss wrote on 10/6/2009, 1:07 PM
You could put the camera you want the MB on into a project with the MB and nest that. Don't know if multicam works with a nested project though.

Even if you end up with one track can't you simply move the events up or down to a different track.

Bob.
musicvid10 wrote on 10/6/2009, 6:25 PM
After looking at both angles more closely, I think I'll just apply minimal motion blur to both via the multicam track. Not mission critical, and I can add nodes to bump it up a little when I need to.

Once again Bob, you put me on the right track -- thanks!