----- Original Message ----- From: "Godfrey DiGiorgi" Subject: Re: Recommendations for digital grey card
> White balance should be of no consequence, although it's possible > that changing the white balance somehow affects the metering > calibration ... dunno. Although it is true that imaging and metering > sensors are more sensitive to light in the red/IR range than in the > green/blue range, and incandescent light is shifted way into the red > range, so maybe the adjustment to WB could affect it in that way > somehow... I've always been a little vague about precisely what white balance is doing, I've alway presumed that it is adjusting the gain of the colour receptors. If so, is it possible that the exposure variance could be generated by the voltage multiplier, not the exposure system itself? William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net