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Atik Narrowband Filter Set
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The Atik narrow band filter are designed with a band pass of 7 nm to aid in capturing all a nebula’s photons while the vast majority of the broad band light pollution is stopped.
The SHO narrow band filter set is compatible with our filter wheels and allows astrophotographers to capture deep-sky objects in spectacular narrow band. This filter set is commonly used to image objects in the Hubble pallet.
Bandwidth:
- SII 7nm
- Ha 7nm
- OIII 7nm
Peak Transmission: minimum 80%
CWL (centre of wavelength):
- Ha 656.3nm
- SII 671.6nm
- OIII 500.7nm
Size: 1.25” mounted, 36mm unmounted or 2” mounted
Transmitted Wavefront RMS: λ/4
Parallelism(arcsec): 30s
Technical Specification
| Filter | Peak Transmission | Half Width | Transmission in Band | Transmission out of Band |
| Hydrogen Alpha | 656.3nm | 7nm | >80% | Maximum＜0.3% Average 0.1% |
| Oxygen III | 500.7nm | 7nm | >80% | Maximum＜0.3% Average 0.1% |
| Sulphur II | 671.6nm | 7nm | >80% | Maximum＜0.3% Average 0.1% |
What's in the box?
Three Narrowband Filters
- Sulphur - SII 7nm
- Hydrogen-Alpha - Ha 7nm
- Oxygen - OIII 7nm
No specifications found
- Code ATK0176
- SKU ATK0176
- Weight 1814
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