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Greg,
I cannot imagine why any astroimager with Tpoint would be interested in using a tool that is at best 30 arc secs accurate when Tpoint is more like 1 arc sec !
Since Polemaster is also a self contained system - (camera & lens) - that means it needs to be added onto your imaging system - so there is yet another error to contend with - the difference between the alignment of the Polemaster and your imaging system
Tpoint is very accurate - If you had problems with Tpoint then I can only guess that there were problems with the mapping accuracy of the stars or movement/fexure in your system that wasnt being dealth with either mechanically or in software
Stick with Tpoint !
With accurately mapped stars I get reliable repeatability down to the arc sec.
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