Askar ColourMagic 2'' Super D Filter Package

Askar ColourMagic 2" Super D Filter Package

£620.00✓ 2 year warranty


Out of stock due 10-15 working days

About this product

Model:  askar_duo_6nm_d1_d2
Part Number:  ASK2DNHOSOD

Two Colour Magic filters with high Ha/OIII and OIII/SII transmission - perfect for narrowband imaging with colour cameras.

Askar's newly launched ColourMagic Super D 2" Duo-narrowband filters are specifically designed for deep-sky imaging.

As the name suggests, the Super D filters have "Super" halo control.

During the filter research and development, Askar made a 'special design optimisation' for Super D filters.

The filters provide one bandwidth at 6nm and the other outside 6nm. 


Specifications D2

  • 6nm Duo-narrowband Filter (OIII & SII) 2”
  • FWHM: 6nm
  • CWL: 500.7nm & 671nm
  • Peak transmittance:90%
  • Thickness:1.85 ± 0.05mm
  • Barrier property:≥OD5 @ 200-1100nm
  • Surface finish:60/40
  • Parallelism:30”

Further Notes
Users will have remarkable results When shooting data through dual-band filters (D1 and D2) and a colour camera.
Usually, in astrophotography, the Hα signal-to-noise ratio is stronger, while the OIII is relatively weak. As our two duo-narrowband filters are Hα+OIII and SII+OIII, the combination can balance the signal-to-noise ratio of each channel when shooting data. After image processing, it can achieve an excellent result, almost as good as shooting with a combination of three narrowband filters and a mono camera.
Here is a link detailing how to process D1 and D2 Data in Pixinsight. 


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