5* Dave, have you done anything to it on the computer?

Apart from cropping, not much. It was a RAW image, so there is a certain amount of adjusting before opening in Photoshop. The banding in the sky was picked up by the camera, probably produced by smoke pollution caused by vast amounts of heather burning that day. Enough to obscure the Wicklow Mountains! It was an extraordinarily clear day above the temperature inversion.