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peter_colavito

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Posts posted by peter_colavito

  1. Photofloods are tungsten. A 211 is 75 watts, a 212 is 150 watts, and a 213 is 250 watts.

    There are also #1 and #2 Photofloods that are 250 watts and 500 watts respectively. To

    filter them for daylight you would need Rosco or Lee CTB(color temperature blue). it

    comes in 1/8, 1/4, 1/2, 3/4, and Full. Full blue will correct to daylight.

  2. There is a product called Heat Shield that you could put in front of the light. It won't

    completely eliminate the heat, but it will reduce it a great deal. The other thing you could

    do, and this is done on alot of tabletop commercials is to put the lights on a dimmer. You

    can dial down the light level while you are setting them so that not much heat is being

    produced,then when you are ready to shoot, bring the lights up full. Just make sure you

    dim them between shooting. To soften the light try using some white ripstop nylon.

    Shower curtain might not be dense enough to create shadowless light.

  3. After you establish your frame and light the object, get a 4'x8' piece of foam core. It is

    white on one side and black on the other. Then strategically place it so that all you see is

    the white or black(which ever you feel works better) reflected in the metal.

  4. Go to the web site www.mole.com. They manufacture lights for the motion picture

    industry. They have a wide array of lights to look at. If you read the specs, you can get a

    good idea of what each does. As far as sodium vapor and mercury vapor, thay are built for

    industrial purposes and have color temperatures different than what film is made for.

    Neon lights are used for store signs, not really lighting for photography unless you are

    trying for some special effect.

  5. Other than HMI bulbs manufactured for the entertainment industry, which is what i was

    referring to in my previous post, there are metal halide bulbs manufactured for work

    lights such as those found in warehouses and other industrial applications. They have an

    internal ballast to regulate the electrical current to the bulb. I don't know how affordable

    they are, but i don't think they can be easily reconfigured to be used for photography.

  6. You can't do it. HMIs come in a complete system. You need an HMI fixture that comes with a ballast. The cheapest HMI that i know of start somewhere in the $2000 to $3000 range. That is just for the fixture, head cable, and ballast. The bulb is additional.
  7. There are a couple of options. The first is to go to an electrical supply and buy a 1000w

    wall dimmer. It looks like the standard dimmers you use in your house but has heat sinks

    on it. The second option is to buy a variac( or Variable transformer), they come in 1000

    watt and 2000 watt versions. The third is called a Magic Gadget. It is a 2000 watt

    dimmer. I listed them in cheapest the most expensive order. I hope this helps.

  8. Here are some quick thoughts on the fixtures you mention, and this is only my opinion. I have never used a broad light for anything other than a work light( and i find that to be the case on most sets i've worked on). The Diva tends to be a little too magenta, and by the time you color correct, light output is worthless(its a fine light for video because you can color correct in camera). I like fresnels. They have a nice even field that can be used direct or through diffussion. Many of the old Hollywood portraits were done with fresneels. I would consider a 1000 watt fixture instead of the 650watt.
  9. I work in the motion picture industry and use them often. They come in a bunch of different sizes. The bulbs come in 2900, 3200 & 5500 degrees. My one problem with them is that they can be a little tempermental. For example sometimes a bulb won't work with one ballast then it will with another. But they do offer a nice soft light, with alot of falloff. I believe there was a cover of American Photo with a picture of Nicole Kidman lit only with a Kino Flo fixture and a 60 Watt bulb.
  10. Coming from the motion picture world, I would suggest using

    plain white Chinese lanterns with photofloods for general

    ambient fill, then use a combination of 200, 300, and 650 watt

    fresnels to bring out interesting parts of the architecture. Then

    add a bunch of light modifying tools to shape the light. As far as

    manufacturers, Mole Richardson, Arri, LTM in that order. All

    these fixtures can be plugged right into the wall.

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