Narrow band Filter Set

Special offer – Get 50% off any (or all) filter sets, when you buy any Atik mono camera (with the exception of the Atik GP).

This offer is available through any of our dealers.

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 result is a much higher signal to noise, revealing faint details in nebulas. The Narrow band filter set comprises of Hydrogen-Alpha (Ha), Sulphur (SII) and Oxygen (OIII).

This filter set received a 5 star rating in the BBC Sky at Night Magazine

50% OFF when purchased with any Atik mono camera (with the exception of the Atik GP)
	1.25″	36mm	2″
Product code	ATK0203	ATK0204	ATK0205
RRP	495€ / $545	515€ / $575	500€ / $625

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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%