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  1. 50mm tunable H-alpha filter 2" diagonal 18mm blocking filter for scopes under 1800mm focal length Lunt 50mm tunable H-alpha filter 2

    Lunt 50mm tunable H-alpha filter 2" diagonal 18mm blocking filter for scopes under 1800mm focal length

    $2,376.00
    This 50mm clear aperture Lunt H-alpha filter can be used to provide striking views of solar prominences and disk detail with virtually any telescope having a focal length under 1800mm . . .
  2. 50mm tunable H-alpha filter with 18mm blocking filter for scopes under 1800mm focal length Lunt 50mm tunable H-alpha filter with 18mm blocking filter for scopes under 1800mm focal length

    Lunt 50mm tunable H-alpha filter with 18mm blocking filter for scopes under 1800mm focal length

    $2,376.00
    This 50mm clear aperture Lunt H-alpha filter can be used to provide striking views of solar prominences and disk detail with virtually any telescope having a focal length under 1800mm . . .
  3. 50mm tunable H-alpha filter 6mm blocking filter 2" Diagonal for scopes under 600mm focal length Lunt 50mm tunable H-alpha filter 6mm blocking filter 2

    Lunt 50mm tunable H-alpha filter 6mm blocking filter 2" Diagonal for scopes under 600mm focal length

    $1,615.00
    This 50mm clear aperture Lunt H-alpha filter can be used to provide striking views of solar prominences and disk detail with virtually any telescope having a focal length under 600mm . . .
  4. Lunt 50mm Hydrogen Alpha Filter with B3400 for 2" Focusers Lunt 50mm Hydrogen Alpha Filter with B3400 for 2

    Lunt 50mm Hydrogen Alpha Filter with B3400 for 2" Focusers

    $3,348.00
    The Lunt LS50FHa is a 50 mm aperture (no central obstruction) integrally tuned etalon for use on any customer-supplied refractor.
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