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View Full Version : Color temp with RAW converter


Ron Green
March 9th, 2003, 03:30 PM
Having sold my 4x5 view camera and color temp meter some time ago, I was recently asked to photograph a number of oil paintings located in several different locations. Some I could expose using my polarized 3400K lights, but in some locations lights were not allowed so I had to use existing or natural window light. Exacting color of the artwork was an important criteria. The S2 and EX software made it very easy. Shooting raw, I converted to tiffs and used the gray picker to find the exact color temp of the light. (I had included a gray card in each frame.) Accoring to the picker, my old 3400K lights were now actually producing 2900K, and the other incandescent, quartz and window light shots ranged from 3100-7600K. The resulting images were right on the money and much more accurate than previous large format film shots of similar subjects. And, it was fun rather than a guess filled and somewhat painful experience.