Thanks Ted. Maybe I was not being clear. This image is just taken on the DMK41 as a single frame. I am trying to work out how to get a six panel mosaic so it looks this even on the illumination but has way more detail. The best I have achieved so far is the examples below.
two panel mosaic
three panel with 640 x 480 (published in Sky and Telescope).
The trouble seems to lie in the way the Solarmax 60, solarmax40 and PST are designed. I am told that the Solarmax90 does not have this same problem. Might be time to sell the solarmax60 and get a 90mm filter for my Tak TSA.