From: "James Lerch" 
To: "ATM List" 
Reply-To: "James Lerch" 


---- Original Message -----
From: "clement.focuser" 
>
> Wouldn't the caustic test be a good test to be automated? The caustic test
> is null test. The test is not as dependent on the photometric linearity of
> the detector system, but rather on spatial linearity of the detector and
X-Y
> stage accuracy.
>

I think so :)  For an amateur level of ultimate accuracy, the Caustic or 2D
Hartman seem like good candidates!

I've avoided these paths because of the need for a mask during the test.
Robo-Foucault was written to maintain a 'reasonable' accuracy, and do so in
the least amount of time possible since its used mostly in a 4hr class
environment.  Eliminating the need for a mask has helped in this regard.

The Caustic test is definitely on the 'To-Do' list, as well as a Combined
Foucault/Ronchi test.

James

--- BBBS/NT v4.00 MP