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Exterior commercial orange lights


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#1 Andy Yeomans

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Posted 29 September 2006 - 09:28 PM

Two questions:

What type of lights are the commercial lighting used for streets and sidewalks that emit a strong orange tone?

And, what color will those lights emit with cross-processing and an ISO 100 or 200 speed slide film?

I will be testing this with still photography, but I would like to know what to expect.

Thanks

Andy Yeomans
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#2 Jonathan Bryant

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Posted 29 September 2006 - 09:45 PM

I believe mercury vapor. Usually they are from 2000-2500k and you can't really get rid of the orangy look because they are missing part of the color spectrum.
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#3 Hal Smith

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Posted 29 September 2006 - 11:34 PM

I believe mercury vapor. spectrum.

Actually they're Sodium vapor lights.
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#4 timHealy

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Posted 30 September 2006 - 02:58 AM

Actually they're Sodium vapor lights.


I agree. Mercury vapor are a blue-ish green in contrast.

Best

Tim

Edited by timHealy, 30 September 2006 - 02:58 AM.

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#5 Mike Williamson

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Posted 01 October 2006 - 01:58 AM

Yes, they are sodium vapor lights and they should photograph basically the same color they appear to your eye. Even with cross-processing, they should still appear orange because they put out only a very narrow portion of the spectrum as they are discontinuous sources. They are actually missing most of the color spectrum, not just a small part of it.

There is a difference between high-pressure and low-pressure sodium vapor lights, if I'm not mistaken one type photographs more pinkish while the other looks more orange, don't remember which is which.
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#6 Andy Yeomans

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Posted 01 October 2006 - 09:37 PM

Thanks a lot for the information. I'll post some pics when I get them.
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#7 Kenny N Suleimanagich

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Posted 18 October 2006 - 12:17 AM

BY THE WAY, if you're trying to match to sodium vapor (orangish light), throw some 1/2 CTO with 1/4 +G on a tungsten lamp.
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#8 Micah Fernandez

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Posted 18 October 2006 - 06:40 PM

sorry, wrong thread...

Edited by Micah Fernandez, 18 October 2006 - 06:41 PM.

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#9 Xavier Plaza

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Posted 20 October 2006 - 06:17 PM

hi

If you want a simulate a look for Sodium Vapor lamps you can use on tugsten lamps a lee or rosco filter number 013 Straw Tint (rodrigo prieto tip)


peace


Xavier Plaza
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