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Old January 13th, 2003, 12:46 AM   #1
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Blue or Green

Which is better to use Blue or green screen when shooting DV?
Question for those in B.C. Where is a place to rent one?

thanks
Scott
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Old January 13th, 2003, 01:31 AM   #2
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Everyone I see nowadays is green.

Try renting from Lorne Lapham. Their website is www.llsr.com
If you can't get one from them, e-mail me, I might be able to find you one.
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Old January 13th, 2003, 06:03 AM   #3
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Yeah, green

Green, because the DV format allots more bits for the green channel than the others--a design decision in harmony with the human visual system. (Humans are naturally more sensitive to green than red or blue.)
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Old January 13th, 2003, 07:52 AM   #4
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I believe that I read somewhere, that if you are shooting a light-haired, light- skinned subject, use a green screen. The most important thing to remember either way, is to keep the subject about four to five feet from the screen, keep it VERY SMOOTH, and evenly light the scene.
And if push comes to shove, you can buy the muslin from a fabric store fairly cheap, and mix your own dye with Ritz dye. The color is fairly easy to achieve.
Good luck,
Keith
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Old January 18th, 2003, 02:00 PM   #5
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Blue screen

Hi

Could anyone please give me some atvice on filming blue screen work with DV PAL.

Shooting with a Canon XL1s, post with premiere and aftter Effects.

Any comments will be greatly appreciated.

Llewellyn
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Old January 18th, 2003, 02:07 PM   #6
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Make sure you light the screen evenly, very important.

Get your subjects as far forward from the screen as possible. This will cut down on any blue coming from the screen being reflected on them. If you are still getting some blue on them, light them from behind with a kicker to help cut it down.

And obviously, make sure your subjects aren't wearing blue.... :)
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Old January 18th, 2003, 04:51 PM   #7
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blue screen

I usually use some straw or 1/4 CTO on the back lights
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Old January 18th, 2003, 09:18 PM   #8
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I've always heard Green was a better choice for dv25.
I guess it depends on what you are shooting.
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Old January 19th, 2003, 05:40 AM   #9
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I have heard, that if the subjects are fair haired and light skinned, green is better. Either way, be sure that the screen is very smooth, no wrinkles or sags. Even Premiere should be able to easily key out the solid color. Or, as you would say it, colour :)
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Old January 19th, 2003, 11:36 AM   #10
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key

yeah, I always use green in fact....havent used blue in probably 15 years.....Ultimattes always seem to use "Ultimatte Green"....Roscoe sells the paint.....
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Old January 19th, 2003, 02:23 PM   #11
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Green is better, but if you already have blue, what can ya do?
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Old January 19th, 2003, 11:15 PM   #12
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Rosco's website lists these matte finish paints in 1 gallon units:

Rosco # Name Phase Angle Luminance
#05710 Chroma Key Blue 342 52
#05711 Chroma Key Green 242 57

Does anyone know the Pantone # equivalent of these colors?


Ron Johnson
Portland, OR
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Old January 20th, 2003, 09:07 AM   #13
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Ultimatte

Hey ron, I lived in Portland for 11 years untill a few months ago......things still tough out there?? was no work when I left.....I used to live over by Mt Tabor.......
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Old March 25th, 2003, 11:31 AM   #14
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I recently found a short tutorial on Chromakey with the following claims for Pantone color equivalents (so one can purchase ordinary paints rahter than the very expensive ones).


http://members.spinn.net/~medendog/effects.html


Chromakey BLUE: Pantone 2735

Chromakey GREEN: Pantone 354

Both should be FLAT finish



RJ
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Old May 28th, 2003, 01:10 AM   #15
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I can say that my experience with green screens has not been good in the past, but I've read a bunch of literature recently that suggests green is the way to go with DV.

I tried using green a couple years ago, back then I was using premiere 5.5 I think, and a hi-8 sony camcorder. I could never get it to work exactly right, I had a backdrop that I was able to salvage, but despite hours of tinkering with the lights the results were unacceptable. I went to wal-mart, I bought about 15 bright blue posterboards, assembled them on the wall, got the lighting even, and the results were terrific.

However, that was on a hi-8 camera, which if memory serves me correctly, had less than 70,000 pixels. Consequently, any problems with the detail in the picture were probably blurred. I imagine that dv is much more sensitive, and that a green screen properly put to use would probably work. I'll be trying it out very soon, I hope it's as easy to use as the blue screen I used to have.
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