Hi guys - (sorry for the delay, catching up on life now that I'm back from imaging)
I will get VMware loaded to my Mac so I can run Windows for CCDinspector.
I did sort out the vertical balance in DEC. So it's perfectly balanced all over. But the same happened the night after. Attached is a straight forward stack of 20x180sec subs, M83. You can clearly see rotation bottom right.
(I managed to sort this out with "translation and rotation" stacking in Nebulosity to result in this:
http://www.flickr.com/photos/astro-t...n/photostream/ )
http://www.flickr.com/photos/astro-t...n/photostream/
Focusser - I can lock it down. But it wasn't for this photo.
Could this be my polar alignment? It would be a huge knock to my ego as prior to the 105APO I was imaging with a 11" SCT, higher magnification - with no polar alignment issues!
Also - my scope has collimation for the focusser. Another thing to investigate. But based on this quick stack - I suspect something other than focusser collimation.
(I'll get a detailed photo of my setup this weekend)
Thanks!