Posted 27 December 2008 - 12:46 AM
Would there be any problems with simply putting a higher wattage bulb into the same socket?
Posted 27 December 2008 - 12:54 AM
Posted 27 December 2008 - 06:06 AM
If you must, do not have the lamp switched on for any prolonged periods of time, and if possible switch off between takes and when you dont need it.
Edited by Matthew Parnell, 27 December 2008 - 06:07 AM.
Posted 27 December 2008 - 09:01 AM
Sometimes in production its a good idea to play the numbers. If a socket can't support the wattage you want, wire in a new socket or think of something different. Unless your rolling several cameras, or a long steadicam shot you should be able to light from off camera.
But those to me seem like your options. I have always been one to light from off screen if possible when a practicle is in shot. It keeps the practicle from being to harsh and glaring, but of course thats a stylistic choice best decided based upon the intent of the shot. i have seen some beautiful shots where the practicle lights everything and is completely burned/flared out.
Posted 27 December 2008 - 09:09 AM
If you're talking household bulbs, you can test some CFLs. I have one from home depot which puts out 300W of light will only pulling 64W of power. From what I saw on video it didn't flicker nor have the green spike and was a 2700K bulb; but on film I'd certainly test it to see how it renders. A color meter can help too if you have access to one. And, so long as all your lights are approximately the same "color," you can time it out in post (e.g. using minus green or plus green as needed to make all your lights look "wrong," on the film, and fixing it in the TK)
Another thing-- don't overload your extension cords. I've had one melt onto the plug on my 2K because a new-guy ran it into the wrong gauge cord. While it didn't start a fire-- though it well could have!-- i had to replace the damned thing which really put a fire under my ass on a Sunday morning.
Posted 27 December 2008 - 10:59 AM
Posted 27 December 2008 - 05:15 PM
Posted 27 December 2008 - 07:32 PM
An important thing to note is that both your lamp and lampshade are rated, and a lot of the time the rating of both can differ dramatically(especially if they were purchase seperately). Your lamp might be rated to 250w but your lampshade to 60w, always take the lower number as your max.
Also remember if you are using blackwrap, diffusion or gel on the lamp to manipulate the light, be aware that these items can reduce the ventilation of the unit and its a good idea to keep that in mind when choosing your prac globe.