impish, oh thank you I certainly will look into your scripts carefully I am sure they are useful. Still, let us not loose sight of th main thing, namly that we want to save out the main camera picture in whatever resolution we want. Atmoshere and clouds can be rendered seperatly most people use HDRI for light anyway.

It is not easy for a render to improve on high resolution photographic elements taken by a first class camera, tone mapped and handpainted by an artist. The universal concept of erudition comes to mind. Whatever you do, the original is going to suffer.