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Pegasus Astro OIII Photographic Filter - 2" Mounted

Brand: Pegasus Astro

SKU : PGA-PEG-FLTR-2M-O3

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  • Adds in reducing the transmission of certain wavelengths of light
  • Designed for nebula observation

Product Details

  • The OIII-CCD 7nm Photographic Filter is designed for nebula observation. Allowing 7nm bandwidth of light centered on a wavelength of 500nm through. Which corresponds to OIII emission lines and adds in 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. Also including the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).



  • specifications

    Bandpass7nm
    Filter ShapeRound
    Filter Size2"
    Filter Thickness5mm
    Filter ThreadM48 (2")
    Filter TypeOIII
    MountingMounted
    Optical CoatingMultilayer Anti Reflection
    Polish1/4 wavefront Parfocal
    Thread Thickness2.5mm
    Transmission RangeT >80% 500 nm 7nm FWHM
  • included items

    • Pegasus Astro OIII Photographic Filter - 2" Mounted

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