I apologize for bringing this thread back from the dead. I have not yet had the chance to try the coffee filter trick, due to nothing but unbleached coffee filters at home and work
. The only downside I can see to the method is that the filter will become very distessed in a short time, especially while travelling with an overstuffed camera bag.
While looking at Asad's for sale thread today I had an idea. Has anyone tried using the white body cap that shipped with the camera as a WB card? I used the body cap, held backwards over the front of the lens, for a couple of test shots, and it seemed to produce good results. The only downside I can see is that it may be too small for lenses with a front element larger than about 58mm. I was happy enough with the results that the body cap is now in my camera bag.
Chris