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Recommend a diffusion for a large source far away?


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#1 drew_town

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Posted 14 August 2006 - 07:38 PM

Greetings,

I'm looking through Rosco's many varieties of diffusion material and I wondered what some of you like to use in this situation. I'm lighting an area approx 80'x30'. I've got a Desisti 5k and two 2k fresnels that must be mounted about 20 feet up and 40 feet away. I'm looking for a diffusion that won't absorb or spread too much light, but one that will help with the shadows on people's faces. I know there's a lot to be done by moving lights in closer and using large sources and that sort of thing, but this is for an installation. I'm reading through "Set Lighting Tech's Handbook" and it leans toward a frost like Opal or Hampshire. Any suggestions? Also any suggestions on the best way to utilize it (on a frame, outside the barndoors, inside the barndoors, etc.) I've also got a scrim set for each light if that helps. Thanks.
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#2 David Mullen ASC

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Posted 14 August 2006 - 07:49 PM

Half Soft Frost comes in large welded sheets for frames and is similar to Opal in diffusing quality. Hampshire Frost is too thin, it would hardly blend the three lights.
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#3 JD Hartman

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Posted 15 August 2006 - 05:42 AM

You could also try a 12x12 china silk on a frame and see if that gives you the look you are expecting.
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#4 drew_town

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Posted 16 August 2006 - 05:56 PM

I ended up ordering some sheets of Half Soft Frost, enough to double them up if I decided to. Thanks for the input.
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#5 Andrew White

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Posted 17 August 2006 - 11:44 AM

Some 250 might do the trick (not as tough as 216, but a little more than opal)
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