I appreciate the effort and care of Russet McMillan's input on the DIS slit viewer, and perhaps this will work as a short term solution. However, I think it is time to buy a decent CCD camera to stop wasting 10 minutes out of every hour using DIS. Rene Walterbos APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 373 in the apo35-general archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-general/INDEX.html APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo35-general@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO