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Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
Askar Colour Magic SII/OIII C2 Filter - 2"

Askar Colour Magic SII/OIII C2 Filter - 2"

by Askar
SKU ASK-ASKAR2DBC2
CA$172.00 - CA$172.00
CA$172.00
CA$172.00 - CA$172.00
CA$172.00
Credit available from affirm logo
  • SII+OIII duo-band filter
  • Improves the quality of the image
  • High transmittance over 90% at its center wavelength
  • Selectively filters light pollution
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3 in stock

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  • Description
  • Specifications

  • Colour Magic C2 2" Duo-band filter is a professional astrophotography tool specifically designed for deep-sky imaging. The Colour Magic C2 duo-band filter is SII+OIII filter.

    Disclaimer

    Note: The Colour Magic C2 duo-band filter is a SII+OIII filter.

    Utility

    When shooting deep-sky galaxies with color cameras, a duo-band filter in the Hα +OⅢ bands is often used; whereas with a mono camera, a narrowband filter in the Hα, SⅡ, and OⅢ bands is often used, leaving users with color cameras missing one band of nebula detail. This can be compensated by using the Colour Magic C Duo-band filter (SⅡ+OIII) mentioned above.

    Askar Colour Magic SII/OIII C2 Filter - 2 inches

    Improvements

    Askar Colour Magic SII/OIII C2 Filter - 2 inches

    Colour Magic C2 Duo-band filter (SII+OIII) has a high transmittance of over 90% at its center wavelength (500.7nm and 672nm). It can effectively improve the quality of the image by making the sky background of the image darker while maximizing the contrast throughout the image， enhancing the contrast of your pictures, and making it easier to display the details of the stars. In areas with very serious light pollution, this filter can also selectively filter light pollution and cluttered signals through the emission lights of the nebula to achieve the ideal shooting effect.

  • Manufacturer Askar
    Filter 2" C2 Duo-Band Filter
    FWHM Ha: 15nm±3nm
    OIII: 35nm±5nm
    CWL 500.7nm & 672nm
    Transmittance 90%
    Thickness 2±0.05mm
    Barrier Property OD3 @ 200-1000nm
    Surface Finish 60/40

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