On this page you can download some additional information about Astronomik filters as PDF files:

(To read and print PDF documents you need the Acrobat-Reader from Adobe)

• Transmission curve Astronomik UHC (PDF)
• Transmission curve Astronomik OIII (PDF)
• Transmission curve Astronomik RGB TYP II (PDF)
• detailed transmission curve of the Astronomik RGB TYP II (PDF)
• Transmission curve Astronomik IR-Cuttoff
• Transmission curve Astronomik H-alpha filter (PDF)
• Transmission curve Astronomik H-beta filter (PDF)
• Transmission curve Astronomik CLS filter (PDF)

• technical drawing of the cell (PDF):
  • 2" (50,8mm)
  • 1,25" (31,8mm)
• Leaflet  for the UHC filter (german)
• Leaflet for the OIII filter (german) (PDF)

• Anouncement of new Filters: OIII & RGB TYP II (german) (PDF)