On 01/06/2010 19:21, Tony Duell wrote:
I've not tried a photographic colour
temperature meter with CFLs. Does it
give any meaningful reuslts at all?
I haven't either, but I'd not trust the result because unless it's a CFL
made specially to have a "daylight" spectrum, the result won't tell you
much. Just like normal striplights.
Exactly. The spectrum of most CFLs (and other fluorescent lamps) is all
over the place, which makes it mildly useless for colour photography.
From what
I've read, it doesn't apply to instrument lamps (so the
frontpanel bulbs
for classic computers are OK), car bulbs, torch
(flashlight) bulbs, projector bulbs (I hope!), and thigns like that.
I wodner if it applies to photofloods?
Dunno. I don't think so, because although it applies to the 150W ES
bulbs I use for my monolight modelling lamps :-( I can still get
higher-power photofloods that fit.
Good!. If all else fails I'll use photofloods then. If necessary on a
step-down transformer to counteract the fact that they are designed to be
overrun.
I believe it doesn't apply to tungsten halogen bulbs either, so I should
be able to get the bulbs for my slide projectors, enlarger, etc.
-tony