From: "John Sherman" 
To: 
Reply-To: "John Sherman" 






> Hope this helps to give some clarity to  the issues of relative wavefront
> shape , at  best focus.


Indeed it does. Thank you Mark.

I've been playing with the refocus feature in Figure 4.5, and it is
obvious. The apparent high zone at 70% disappears when the refocus is set
to zero, and becomes a smooth, overall overcorrection of the whole mirror.
I've seen the same thing in Sixtests using the Target button, but the
button doesn't seem to work the way I want it to. Still, the same info
comes across.

John

--- BBBS/NT v4.01 Flag-5