example. I am setting up in a spare room that is 11x10. Could i use a light kit that was 135 watts-second? Does it matter the size of the room?
2007-08-23 16:52:22 · 4 answers · asked by Justwondering 2 in Arts & Humanities ➔ Visual Arts ➔ Photography
The efficiency of a bulb is around 20%. So 80% comes off as heat. Your 60W bulb is like a 48W heater. From one ad on small heater: "The Presto Parabolic Heat Dish is a cost effective choice for workshops or garages when you want to heat just you and not the entire building. The Cozy Legs radiant heat panel, with only 100 watts of heat output is by no means a whole room heater, but performs admirably when installed under a desk or hung on the wall to warm a bird cage." From here we can see that the 60W bulb is about 1/2 the power of this "personal" heater. So yes if you are near the bulb, and not as much if you have a big room. You may wish to change the bulb to a fluorescent light which is 5X more efficient and you would not have this problem of heat. Additionally, your energy savings ($$$) will be significant over time and you are also helping the environment.
2016-05-21 04:24:31 · answer #1 · answered by gerry 3 · 0⤊ 0⤋
Size of the light source matters on the size of the subject. If you're lighting a big banquet room for example.
Generally you're subject area will be the size of the muslin BG. 135 W seems a bit small. You could move it closer to your subject for using a silver umbrella to bounce the light brighter and bigger to help.
Check out www.samys.com They have good info on all photography things.
2007-08-24 08:20:35 · answer #2 · answered by Michael M 5 · 0⤊ 0⤋
no because unless you are trying to light up the whole room, youre only going to be lighting a small portion...where the model is. 135WS is really small.... are you useing on camera speed lights on stands with umbrellas? be care full with these so called "pro" kits on ebay, a good part of them are junk and the rest are just small, underpowered kits. have a look at the Strobist group on flickr... really good site for using small, on camera flashes for portable studio lighting.... check it out.
2007-08-24 01:11:34 · answer #3 · answered by craig z 3 · 0⤊ 0⤋
Technically, no - it only depends on the area you are lighting. But if you are going to use reflected lighting off the walls and or ceiling, then it makes a lot of difference.
2007-08-23 16:58:57 · answer #4 · answered by Mike1942f 7 · 3⤊ 0⤋