I'm having a terrible time with getting proper colours out of my camera. How are you doing it? I've been told white balance is the issue. A colleague at work told me to look at the Expodisc and was dismayed to see the price. Why does this cost so much? Is it worth it? After searching on the net, it seems I'm not the only one shocked at the price. I ran across a thread in which an expodisc representative explains the high cost, but it's typical business speak: http://www.photocamel.com/index.php/topic,2888.0.html Have any of you purchased this? For the price of a lens, is it worth it?