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To: Road Walker who wrote (100721)	3/13/2000 9:05:00 AM
From: rudedog	Read Replies (1) \| Respond to of 186894

John - OT Sam Berman's work is fascinating and reinforces much of what I had observed subjectively. Almost everyone can appreciate the "mood" of a room lit by candle light, which is about 2700K. But one conclusion from Berman's work would suggest that this color distribution would cause a wider pupil aperture for the same measured light, which would "soften" the image in much the same way that portrait photographers will "soften" a picture with a very narrow focus, so that most of the picture is slightly blurred. The same effect happens at sunrise or sunset... That light quality is one of the reasons I went to HP Sodium for my outdoor "mood lighting". I also have some interior rooms where the ceiling lights are 150W floods, but normally run at 70% power, which takes the color temp from 3200K to about 2500K (and incidentally doubles bulb life). It's amazing to see the effect on how people feel and interact - yet unless you point it out, few notice the light, they just seem to feel more mellow and relaxed. Not good for reading though...