[Cellarman]

I've been using HDR in Photoshop for a while now. I use the technique for images of church interiors, especially stained glass windows. HDR allows me to get correct exposures of both the highlights in the stained glass and the darker interior surrounding the window. The minimum number of exposures I have used is 3, with over/under exposure of 2 stops, but I prefer to start from well under and go via 1 stop difference to well over exposed, which usually means at least 9 exposures. There is much more to HDR than just the automated part in Photoshop. The true control comes in the process of turning the 32 bit image into a 16 bit one. There are plenty of useful sites which give a full explanation. I would recommend anyone to try it for a subject of high contrast.