by LukeM » Feb 1, 2012 3:50 pm
Good points, although I think doing something quite similar would be achievable with flashes, but probably would generate more hassle. By the way, there are some very bright electronic flashes available that allow the use of the bare bulb to get a non-focused source.
Doing some back of the envelope calculations it looks like a few seconds of exposure with a 4500 lumen flashlight would be less than an order of magnitude brighter than one firing of a flash. 2 seconds of exposure would be something like 4-8 times as bright as one flash from something like a Vivitar 285, so multiple firings could achieve the same result. I guess I'd say if you already have some flashes it's worth investigating that route before looking into sources of constant illumination.