LRGB + Ha12nm CCD Filter Set D:36mm

(185,95 excl. btw)
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Omschrijving:  © Copyright takahashi.be

OPTOLONG© LRGB / H-ALPHA 12nm CCD Filter set 36mm unmounted (5 Filters)

  • High Quality LRGB filters designed for maximum transmission.
  • Set consits of UV/IR cut (Luminance), Red, Green, Blue Filter and H-Alpha 12nm

Features / Specifications:

  • Glass by Schott Germany.
  • Ultra-hard ion Beam Coatings on both sides.
  • High transmission (<96%) for short exposure times.
  • 30 arcsec parallelism.
  • 2mm glass thickness.
  • Completely resistant against high humidity, scratches and aging effects.
  • Every filter is fine optically polished to 1/4 wave length.
  • Blocking  emission lines of Mercury and Sodium vapor lamps.
  • IR -Cut (Luminance) for better contrast
  • Low profile aluminium filtercell
  • Star halo reduction on all filters.
  • Diffraction limited, the filter will not reduce the optical performance of your telescope

All filters are parfocal so there is little or no need to refocus between filter changes.