In a message dated 11/5/06 10:24:02 AM, ve2caz@... writes: How do you guys evaluate the intensity of your lighting? There is a light intensity measurement function in the recent versions of Spyder2PRO, available for download from the colorvision website. The reason I ask is that I have never done studio work as most of my images are in natural light outside so I do not possess this experience. Does it mean that I need to get an incident light meter to measure it and would this thing give me K units? K is color temperature, we're talking luminance, which is candelas per meter square. C. David Tobie Product Technology Manager ColorVision Business Division DataColor Inc. CDTobie@... www.colorvision.com