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Old August 7th, 2007, 01:28 PM   #1
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The brightest light I have ever seen (except the sun, maybe...)

On my way home from work I just walked by a commercial film production (16mm Arriflex camera). They were shooting inside a bakery, they had the whole front window/entrance covered with some tough white diffusion cloth and lit it from the outside with two ArriSun 12kW. Oh my god it was so bright I could hardly believe it. From what I could see on the inside the light must have been fabulous (they also shot another 5kW Arri hmi through the window on the side).
This is just... WOW! :)
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Old August 7th, 2007, 03:32 PM   #2
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I saw something similar the other day in London, a truck mounted beast that was 10m in the air and about 3m wide - on the back, a sign saying:

100,000W lighting

I was scared!!!
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Old August 7th, 2007, 03:50 PM   #3
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On a feature I was one once we were shooting interior green screen of a pitcher throwing a baseball with a Photosonics camera, at around 1000 frames per second. The amount of light needed to capture the shot was obviously massive because of the frame rate. We had a number of Lightning Strikes instruments, which are normally used to simulate the effect of lightning, however these were set up to strobe synchronized with the shutter so that they would photograph as continuous light. When they fired them up, the massive bundle of electrical cable powering them would literally clench and dance around like a muscle being tightened with all of that current. It was an awesome spectacle. Everyone was wearing sunglasses!
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Old August 7th, 2007, 04:45 PM   #4
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That's cool Charles! I've always wanted to see one of those shutter sync'd Lighting Strikes units in action.

The truck in London sounds a lot like a Musco light. A completely self-contained mobile lighting unit with 15 6K HMI heads at the end of a long hydraulic arm. If I recall correctly, you get 25 footcandles at 0.5 miles (or 250 lux at 0.8 km if I got the conversions correct). Just the thing for night shots over vast areas :)
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Old August 7th, 2007, 05:05 PM   #5
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I want one!

Unfortunately, it would blow the main breaker on about a dozen residential homes simultaneously. I'll need lots of stingers...
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Old August 7th, 2007, 10:29 PM   #6
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Originally Posted by Marcus Marchesseault View Post
I want one!

Unfortunately, it would blow the main breaker on about a dozen residential homes simultaneously. I'll need lots of stingers...
Hee, hee!

Marcus, be sure to give a candy bar to everyone whose home you plug into. That's about 4,500 candy bars and the same number of stingers. You may also want to get a couple of candy bars for yourself, while you're at it. I'll take a Zagnut, if you can spare one.

I think the brightest light I ever saw was when I was a student at RIT, back in the 80's. The Broncolor (flash) rep was demonstrating a new 3200Ws Hazylight. It was pretty neat 'cuz it was a large, 1 meter square, remote controlled softlight, on a Flamingo Stand (similar to a studio stand for a large format camera).

So this guy was making it go up and down, tilting and rotating and going side to side. And we were all "oohing" and "ahhing". So he gets the light right over our young, admiring, upturned faces and lowers the light very close to us. See kids, it's very nice. Notice how evenly lit the front face is. Look at how soft it is. "Oh yes," we say, "it's very even and very soft." Right then, the idiot lets us have it: 3200 Watt Seconds, right in the kisser, from a foot away. Suddenly, there are twenty blind students and faculty, grimacing and covering our eyes. A few swore.

If we could have found the little weasel, we would have killed him. But all we could see, as we stumbled around the studio, like zombies with our arms outstretched, was a very evenly lit, very soft, blinding white square, burned into out retinas.

The following year, we got new Broncolor flash gear in every studio.
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Last edited by Mark Sasahara; August 7th, 2007 at 11:05 PM. Reason: adding a humorous story
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Old August 7th, 2007, 11:10 PM   #7
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If you want the "personal" version, I ran across this story on ars technica the other day.

I guess there's a whole community of flashlight geeks who are always pushing for bigger and brighter in personal transportable lighting

Not very useful for video - unless you're trying to simulate a bat signal on a cloud - but pretty interesting none the less.

http://tinyurl.com/dqpnc
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Old August 8th, 2007, 03:27 AM   #8
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That light actually would be useful. It could be aimed at a lightweight reflector up high to simulate the moon. Have you seen the flashlight that can set newspaper on fire just from the light it produces? Those people are a bit nutty, but it's still fascinating.
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Old August 8th, 2007, 06:31 PM   #9
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The price is not bad for what it is. The really interesting thing there that I'd like to know more about is that power supply. 28v / 60amp. A DC generator?
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Old August 9th, 2007, 02:45 AM   #10
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Originally Posted by Charles Papert View Post
When they fired them up, the massive bundle of electrical cable powering them would literally clench and dance around like a muscle being tightened with all of that current. It was an awesome spectacle. Everyone was wearing sunglasses!
And I thought 150fps on a 435 is kind of an intense experience...hearing the whir and knowing what would happen if it jammed.

I don't even know what a Photosonics sounds like, but I know what the Lightning Strikes units sound like, and with all the commotion that would have to come to life for only 3 or 4 seconds at a time, I bet it freaked the s**t out of the talent on that first take!

Yow.
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Old August 10th, 2007, 01:17 PM   #11
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Quote:
I saw something similar the other day in London, a truck mounted beast that was 10m in the air and about 3m wide - on the back, a sign saying:

100,000W lighting

I was scared!!!
Maybe that was one of the Musco light trucks? I read about them in a cinematography magazine recently.
http://www.musco.com/temporary/muscolight.html
Fifteen 6kW hmi lamps (= 90kW) on a truck with hydraulic boom.
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