Contents

• Introduction
• Technical description
  • Optics
    • Imaging optics
    • Filter
      • Broad-band Filter
      • Narrow-band Filter
      • Circular Variable Filter
  • Detector
  • Shutter
  • Prefocal Optics
    • Fabry-Perot etalons
    • Polarizer
    • Atmospheric dispersion corrector
• Observations
  • General remarks
  • Orientation of the field of view
  • Image scale
  • Dead pixels
  • Limiting Magnitude
  • Sky subtraction
  • Integration time
  • Spectroscopy
  • Polarimetry
• Examples
  • Observations of bright and isolated objects
  • Observations of crowded fields
  • Observations of very faint objects
  • Recording flat fields
• Transmission curves of the filters
• About this document ...