Re: Pure white

"What do you guys rely on to decide what is pure white?"

Having come from the acquisition side of image making I think it's very important to continually cross-reference what you see on the monitor with what you see on the scope. We all know how easy it is for the eye to alter it's perception of the white point as the surrounding content changes.

For this reason I am sold on the the two proprietary displays that Tektronix scopes are capable of, both gamut related: The diamond display and the spearhead display. You can go to their website for an explanation and tutorial but, briefly, the diamond is a very precise way of measuring the RGB component of a picture and the spearhead measures Hue, Saturation and Lightness. Put them together and it's very hard to make an error regarding grayscale. Once you get your head around them (it takes a while) you'll find your trusty RGB parade to be sadly lacking.

Mark Sanford
Los Angeles