Graytown wrote:
Is there a way to change the "color temperature" of an image using Photoshop (not CS). Or is there a plugin that anybody can recommend. I’m using a Digital Rebel.
Of course, the best method is to set the correct color temperature in the camera. To correct photos shot with the wrong color temperature, you can use Curves and use the grey eyedropper, but that will often create new color shifts in the highlights. For example; you correct the green cast of fluorescent light, but create a magenta cast in the highlights as a result. Tweaking your curves could correct this, but is difficult and cumbersome. The following method works better IMO, because it avoids this ‘overcorrection’ in the highlights. Find a spot that should be grey and click on that spot with the eye dropper. Make a new layer and fill this layer with the foreground color you’ve just set. Invert the layer. Change the blend mode of the layer to ‘Color’ and lower the opacity to something like 25%. This value can be different for different images, so play with it a little. This method is like using a color correction filter on your camera.
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Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer
http://www.johanfoto.nl/ 
