Practical flourescent fixtures flickering HELP!!
Posted 21 July 2007 - 04:25 PM
Posted 21 July 2007 - 05:00 PM
Putting the fluorescent on a dimmer usually works, however usually also ruins the ballast.
Posted 22 July 2007 - 03:11 AM
I am looking for control over the flicker while keeping it completely random.
Read that sentence to yourself, as many times as needed, ha ha.
If loosening the bulb works and looks good, then go for it...just not so loose it falls and shatters in someone's eyes.
I used to have some CFL's at home that were hooked up to a toggle dimmer switch, and when I dimmed down they gave a really cool flicker which I did to bug my wife sometimes. You might wanna consider something as simple as that.
Edited by Jonathan Bowerbank, 22 July 2007 - 03:11 AM.
Posted 22 July 2007 - 04:58 AM
Posted 22 July 2007 - 11:18 AM
Giving something a random quality and controlling the parameters of it, is something is that is completely legitimate and reasonable.
And using whatever device he finds to keep that randomness "consistant", may be important during the course of a scenes shooting whether is takes half a day or a week.
I have done human switching on and off, to create a multitude of effects, and sometimes it works and sometimes it doesn't. Sometimes you don't know that it doesn't work until editing two shots together and you can see with the human factor has changed between shots. Giving control to a dimmer board, variac or some other device is the best way to go.
Edited by timHealy, 22 July 2007 - 11:23 AM.
Posted 22 July 2007 - 11:29 AM
Posted 22 July 2007 - 05:56 PM
Why are you guys poking fun at him?
We all know what he meant, it was just the wording with "keeping it completely random", sounded funny, ya know?
Of course he can have full control over how random he wants his light to appear...perhaps it wouldn't have sounded so funny had he written that, "to APPEAR completely random."
Posted 24 July 2007 - 12:59 PM
Posted 24 July 2007 - 02:48 PM
For these reasons, I advocate the manual control approach. When I've done this, I've always just had someone wiggle the plug in the socket; that way, it's really controllable, based on how much light the operator sees coming out!
As a side note, you are likely to stress the lamps and starters quite highly, especially if you do it for a long time. Both are cheap enough to be treated as expendables, but certainly here, and I suspect in green-happy California, there will be disposal rules for the lamps. They contain toxic heavy metals and should be sent to a good home, both to avoid pollution and to allow these exotic materials to be reclaimed.