would this be the right sort of collimating tool ...
http://www.myastroshop.com.au/produc...sp?id=MAS-050A
been looking at some random stuff today and building up the belief that it might be collimation ... made a gradient map using my flats from yesterday (think that is what it was) ... well either way the center of the image(brightess point) was off to the right and down the bottom rather then concentric circles radiating out from the center.