Atik Narrowband 36mm Filter Kit

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• The Atik narrow band filters are manufactured with a band pass of 7nm, capturing a nebula's photons while preventing a large portion of the broad band light pollution from entering. 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).

   

  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%

   

• specifications

  Filter Shape	Round
  Filter Type	H Alpha
  Filter Type	OIII
  Filter Type	SII
  Size	36mm