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 Post subject: Upgrading lighting systems
PostPosted: Thu Aug 12, 2004 11:38 pm 
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Joined: Sun Oct 24, 1999 11:01 pm
Posts: 19975
Location: London, England; Tallinn, Estonia
Brief report about a lighting system upgrade in the UK:

Light fantastic
From The Stage

The Congress Theatre in Cwmbran, Gwent has benefited from a £30,000 lighting refurbishment project managed by Stagecraft. The upgrade features two of Selecon's new Pacific followspots, which are said to be among the first installed in the UK.

click for more


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 Post subject: Re: Upgrading lighting systems
PostPosted: Sat Aug 14, 2004 5:11 am 
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Joined: Sun Dec 12, 1999 12:01 am
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Location: The Bronx is up; the Battery's down
Selecon makes very good equipment. The only problem is that they're from New Zealand, which is south of the equator; the light comes out upside down and backward.

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Jeffrey E. Salzberg,
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http://www.jeffsalzberg.com


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 Post subject: Re: Upgrading lighting systems
PostPosted: Sat Aug 14, 2004 9:09 am 
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Joined: Sun Oct 24, 1999 11:01 pm
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Location: London, England; Tallinn, Estonia
Quote:
...from New Zealand, which is south of the equator; the light comes out upside down and backward.
Gee whiz, I never knew that Salzberg. It's amazing what you can learn on CriticalDance.

<small>[ 14 August 2004, 11:10 AM: Message edited by: Stuart Sweeney ]</small>


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 Post subject: Re: Upgrading lighting systems
PostPosted: Sun Aug 15, 2004 4:09 am 
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Joined: Sun Dec 12, 1999 12:01 am
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Location: The Bronx is up; the Battery's down
Color mixing works backwards, too. In the northern hemisphere, we make magenta light by mixing blue and red; down under, they make it by mixing red and blue.

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Jeffrey E. Salzberg,
Dance Lighting Design
http://www.jeffsalzberg.com


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 Post subject: Re: Upgrading lighting systems
PostPosted: Sun Aug 15, 2004 5:43 am 
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Location: London, England; Tallinn, Estonia
Gosh! Who would have thought that the mixing of paint was non-commutative. You know everything Salzberg.

<small>[ 15 August 2004, 07:43 AM: Message edited by: Stuart Sweeney ]</small>


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 Post subject: Re: Upgrading lighting systems
PostPosted: Sun Aug 15, 2004 6:36 am 
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Joined: Sun Dec 12, 1999 12:01 am
Posts: 3663
Location: The Bronx is up; the Battery's down
Light, Stuart, not paint.

Mixing light is additive, whereas mixing paint is subtractive. This is why they have different primary colors.

The primary colors of paint (more accurately, "the primary colors of subtractive mixing") are:

<font color = red>Red</font>
<font color = blue>Blue</font>
<font color = C0C000>Yellow</font>


The primary colors of light (more accurately, "the primary colors of additive mixing") are:

<font color = red>Red</font>
<font color = blue>Blue</font>
<font color = green>Green</font>


How, you may ask, does one get <font color = C0C000>yellow</font> light out of <font color = red>red</font>, <font color = green>green</font>, and <font color = blue>blue</font>?

It's a secret.

<small>[ 15 August 2004, 09:43 AM: Message edited by: salzberg ]</small>

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http://www.jeffsalzberg.com


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 Post subject: Re: Upgrading lighting systems
PostPosted: Sun Aug 15, 2004 4:25 pm 
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Joined: Wed Mar 20, 2002 12:01 am
Posts: 3000
Location: San Francisco
Thanks for the provocative question, Jeff. I looked it up and learned something new. Now, what was the topic of this thread?


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 Post subject: Re: Upgrading lighting systems
PostPosted: Mon Aug 16, 2004 8:19 am 
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Location: The Bronx is up; the Battery's down
Shhh, djb! Don't tell anyone the answer; I win lots of beers with that bet.

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Jeffrey E. Salzberg,
Dance Lighting Design
http://www.jeffsalzberg.com


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 Post subject: Re: Upgrading lighting systems
PostPosted: Wed Aug 25, 2004 2:57 pm 
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Joined: Sat Jul 15, 2000 11:01 pm
Posts: 971
Location: Pennsylvania
Quote:
Originally posted by salzberg:
Don't tell anyone the answer; I win lots of beers with that bet.
Yellow beer?

Or red and green beer?


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 Post subject: Re: Upgrading lighting systems
PostPosted: Wed Aug 25, 2004 8:06 pm 
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Joined: Sun Dec 12, 1999 12:01 am
Posts: 3663
Location: The Bronx is up; the Battery's down
Yes.

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Jeffrey E. Salzberg,
Dance Lighting Design
http://www.jeffsalzberg.com


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