It seems that my previous post created a bit of a stir with a few requests for a tutorial added to the site and many more sent by email. I have therefore bowed to public pressure and added a tutorial to my Lenscraft site describing how the image was captured and then processed. There may be a few surprises in there for some of you. Here is the link
And for those of you wanting to see the starting image, here it is.
Hope you enjoy.