Alex,
Your choice of images really show off the capabilities of the hardware and your talent. Good job!
I was especially impressed with the URPro filter shots. I bet most viewers pass this over without realizing that this color is attained without stobes. Especially the anthias/soft coral reef scene. They don't have the punch of some of the rich saturated macros (especially the turtle), but the fact that they are available light is encouraging.
This is a technique that slide shooters never embraced - video yes, but film, no. Digital gives that immediate feedback to reinforce what is working, and whats not. You say you manual white balanced prior to the shot. Did you card it? Or just try to balance the composition to contain a mix of red and blue subjects. What was the single most cause of rejects? Brownish blues? Warm objects that were close?
What a way to lighten our load! No strobe color photography!
Lastly what about the D2X, made for easy white balance?
Keep up the good work.
Richard Todd
EPIC