Optolong SHO-3nm Telescope Filter Kit - 2"

Brand: Optolong

SKU : OL-SHO-3nm-2

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  • For tricolor CCD astrophotography
  • Narrowband imaging with SHO set can be done with the moon up in heavy light pollution, so your equipment is not sitting dormant for several weeks
  • Hubble look of images can be made by the combination of H-alpha, OIII-CCD, and SII-CCD, such as the famous “Pillars of Creation” (M16 Eagle Nebula)

Product Details

  • H-Alpha 3nm filter is the most popular narrowband filter allowing 3nm bandpass of light centered on a wavelength of 656nm. Extra narrowband SII-CCD 3nm and The OIII-CCD 3nm filters are designed for nebula observation allowing 3nm bandpass  of light centered on a wavelength of 500nm (Oxygen-III) and 672nm (Sulfur-IIthrough, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low-pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow)

  • specifications

    Filter ShapeRound
    Filter Size2"
    Filter TypeKit
  • included items

    • H-alpha Filter - 2"
    • SII Filter - 2"
    • OIII Filter - 2"

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