• ALFA online User Guide
  
  
• How to operate the ALFA instrument on the Telescope is described in A User's Guide for ALFA(*) (available also as postscript file (2.4 MByte) or as compressed postscript file (614 kByte))
  
  
• The ALFA Laser-Guidestar System - An Overview

(*) Use Acrobat Reader from Adobe to read and print pdf documents.