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Atik 1.25" Narrow Band Filter Set - ATK0176

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Atik 1.25" Narrowband Filter Kit

Featuring 1.25" mounted Hydrogen-Alpha (Ha), Sulphur (SII), and Oxygen (OIII) narrow band filters, each designed with a 7 nm band pass, this Atik Narrow Band Filter Kit enables much higher signal to noise by blocking a substantial majority of broad band light pollution while allowing all of the light from your target nebula to pass through. Faint nebula details are thus revealed.

Suitable for use with any Atik filter wheel, these filters allow astrophotographers to capture deep-sky objects in spectacular narrow band. In fact, these filters are frequently used to image objects in the Hubble palette.

Atik 1.25" Narrowband Filter Kit Specifications

  • Bandwidth:

    • SII: 7 nm
    • Ha: 7 nm
    • OIII: 7 nm
  • Peak Transmission: >80%
  • CWL (Center of Wavelength):

    • SII: 671.6 nm
    • Ha: 656.3 nm
    • OIII: 500.7 nm
  • Size: 1.25" mounted
  • Transmitted Wavefront RMS: λ/4
  • Parallelism (arcsec): 30s

Images may depict a different filter set than the one you receive