Other sites of interest. Here are two sites that came from the visit of John Gardner on Wed. 16th Sept who gave us a great evening on Natural History.

Image stacking (to increase depth of field) Go into the hadley blue yonder website below and click Combine ZP this is for PCs only

The other site is for the HDR high dynamic range download free for a period then you have to pay, This is is for PCs or Apple Mac.