Thanks for all the really useful information.
I am struggling with sunburst shots in particular. My sunburst shots taken with a D70 do not come out well at all, and yours taken with the D2X are mind-blowing.
I have read through a couple of the old posts on the topic but am new enough at Digital SLRs not to have anything approaching a complete understanding.
My question is, will my sunburst pics get materially better with practice and experience or does the D70 simply not have the tonal range to effectively handle these shots?
Attached is a pic taken in Cape Town at a depth of 40m with visibility of +/- 10m and really bad surface conditions (3m swells). How do I get the sunburst to look more like yours....???!!!