Hello Lawrence,

> The guider chip has a fixed relative position. I cannot see anywhere in Guide
> where one can be activated. The menu option only offers one (main) camera frame -
> no guide camera - hence my query. I can find no reference to this in the manual.

the answer is in this link I gave before:
http://www.projectpluto.com/update7.htm#guider_chips
It is an (like many others) undocumented feature.

Choose a camera without a built in guider chip (or create a new one in
CCDS.NAM). Close Guide and add a line like the following at the end of
GUIDE.DAT:
GUIDER_CHIP=-.5, .6, .25, .19, 192, 165
Restart Guide. The numbers are exlained in the link given above. You have to
play with them to get the proper result.

> >> 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!

Clear skies
Bernd


Bernd Brinkmann

Sternwarte Herne, MPC code A18
Herne, Germany

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