First test was Testing Nikon D-50, Nikon D1X, Canon 1D, and Canon 1DII to see if using a grey card can make color match at conversion from RAW files. One observation is that the Nikon cameras shoot darker than the Canon's do. Other than that the color comes out very close when using the click color ballance and clicking on the grey card.

The second test is using a Nikon D1X and a Canon 1DII (the 2 cameras I use the most) and setting a custom whiteballance with an Expo Disk. First I used the expo disk alone, then I cut a 1/4 plus blue cinegel and insert this into the expo disk then did another white ballance. I like the warmth that comes from this and think I will leave the 1/4 plus blue in most times. Is rather like using a 81B filter with velvia or E100SW in the old chrome days.