- Ultimate user
Want HitFilm on Mac? Check out our Kickstarter campaign »
The trick to lightning is that its very directional, so you only need one really bright light. But it has to be bright enough to overpower all the other lights providing the general illumination of the scene. Its important that the light be from one direction, and that it create hard shadows when it is present. Then you just need a bit of black card to cover the light, and somebody to move the card back and forth to create the flashing.
The closer you can get the light to your subject, the more easily it can overpower whatever other lights you have going. Inverse square law and all that. And since the light is meant to be harsh anyway, having it as close as you can get without the light being in frame, is probably your best bet.
You mean like a bit of black card being waved in front of a bright light?