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The Telescope Authority
Since 1947

Atik Narrowband 1.25" Filter Kit

SKU : A3-ATK0176P

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Product Details

  • The Atik narrow band filters are manufactured with a band pass of 7 nm, 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 ShapeRound
    Filter TypeH Alpha
    Filter TypeOIII
    Filter TypeSII
    Free ShippingYes
    Size1.25"

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