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Robin,
Focal length 2.3 metres, Tpoint pointing model on 110 points give RMS pointing error of 15 arc seconds - not too bad!
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I would view that the truth is the Handset needs a model of the sky, that Tpoint then corrects for.
The Handset can have a one, two or three star model of the sky. The more sophisticated a model - supposedly the better the handcontrollers pointing (and in case of a 3 star model - tracking too).
One each night of use I presume I have to re-sync the handcontroller to the alignment stars originally chosen - becuase 1) the clock is out and 2) some information may be lost during power down (e.g. is the mount level?).
I presume each Tpoint model is valid for one and only one hand controller model - and so long as you don't mix and match - everything should work okay.
Can you see any flaws in my thinking?
Ciao, Matt
Last edited by g__day; 13-06-2013 at 08:06 PM.
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