A Variac is a big light dimmer. A large variable resistor. They come in many different sizes depending upon the amount of electricity used. As more resistance is applied, the voltage to the lamp drops and the light output decreases while the color temp also decreases. By the use of the dimmer, I assume that the Solux halogens are filtered in such a way as to produce light (at normal voltage) of above 5000K. On Sunday, Dec 19, 2004, at 08:43 US/Pacific, DigitalBlackandWhiteThePrint@yahoogroups.com wrote: > Message: 18 > Date: Sun, 19 Dec 2004 08:36:04 -0500 > From: Stephen Petegorsky <petegorsky@...> > Subject: Re: Setting Monitor Luminance, Col Temp & Gamma > > >> I use Solux halogens, and have >> tweaked the line voltage with a variac to get 5000K at the viewing >> surface > > Paul - What's a variac? How much tweaking can be accomplished with it?
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Re: Setting Monitor Luminance, Col Temp & Gamma
2004-12-19 by bruce greene