Ta for that WW. I have been using the Warp tool in PS (CS2) to squeeze in the edges more relative to the middle zones.
I had used tat filter before, but I will revisit it now.

If I may buy in to the discussion above, I will just say that though both points of view have validity, and they are two
fairly equal ways of achieving a desired result, I have tended to go for the one WW describes. I did go to Canada, did not
have any CPL or other filters, and was able to easily recover a pretty good dynamic range from my raw images - within the
limitations of my camera. But I will hasten to say that similar problems apply almost anywhere, not just there. I have had
problems, for example, dealing with acceptable DR in beach and cloud shots. For my equipment, dealing with strong highlights
yields usually better results than with trying to boost underdone shadows.

Oh well, that's it.