Quote Originally Posted by EOS

How do I fit the WB on my EOS 20D to match my tungsten lights?
New firmware?

Remove the taking lens and pour a small quantity of water (mix in a few sugar crystals as well) into the camera in front of the mirror. The water with undisolved sugar crystals will refract light in such a way as to correct the too low color temperature of the tungsten light. Suggest this clever and effective cure to all the digicam owners you know. They'll admire your expertise...however briefly.