Hello Lawrence,

> I have now edited this line in - but as well as the correct guider FOV above the
> main chip, there is also now a second 'guider' somewhat displaced from the real
> one. I can ignore it but.......?

but wasn't that what you want? A second guider chip field independent from the
original one? Or was there a misunderstanding?

Clear skies
Bernd

> >> Do we already have - or could we have a second CCD camera frame available and
> >> offset? I want to set up a guide camera frame near to the main CCD frame to
> >> anticipate an guide star finding difficulties - of which I have a lot!
> >
> >do you mean a guider chip with a fixed separation and orientation (as many of the
> >SBIG cameras have) or a second independant camera? For the first case your
> >problem is solved. The CCD guider chip frames are included in Guide.
> >
> >For the second case it is more complicated but doable. Look at the file
> >CCDS.NAM in the guide directory. There you can see how a second ccd chip
> >is handled.
> >
> >The details how to add a second guider chip are explained here:
> >http://www.projectpluto.com/update7.htm#guider_chips
> >and here are "Guider rings" explained:
> >http://www.projectpluto.com/update8.htm#ccd_range
> >
> >But all this only applies, if the offset of the guider chip is constant and not
> >movable as in a seperate guider scope with adjustable ring brackets.

Bernd Brinkmann

Sternwarte Herne, MPC code A18
Herne, Germany

e-mail: info@...
http://www.sternwarte-herne.de