Filtersets H-Alpha, OIII & SII

Filtersets H-Alpha, OIII & SII
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IDAS narrowband filter set for astrophotography - high contrast - also for fast telescopes - up to 70% transmission at f/2

  • H-Alpha 6.8nm, O-III 6.0nm and S-II 6.3 nm half width
  • 2" mounted standard filter thread
  • Low profile filter mount - height only 6 mm
  • Reflection minimizing coating
  • no halo problem due to anti-reflective layer
  • Half-widths for wide range of applications
  • Can also be used on extremely fast telescopes
  • Made in Japan
1269.00 €
Estimated delivery time : 1-4 days