Lunt - 100mm Ha Etalon Filter

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Introducing the LS100 Hydrogen-alpha system
Manufactured by:
Lunt Solar Systems

Product Description

H-alpha Single Pass Front Mount Etalon System for telescopes with 2” focuser and up to 540mm focal length.
Introducing the LS100 Hydrogen-alpha system.   It features a 100mm aperture integrally tuned etalon for use on any customer supplied refractor. System includes the B600 required blocking filter standard for use on telescopes up to 540mm focal length. Other configurations are available at reasonable additional cost.

Because the LS100 has an estimated bandpass of <0.7 Angstroms it is capable to providing high contrast views of both surface and edge detail. Adding an additional etalon system will reduce the bandpass to ~<0.5 (dependant upon scope) allowing for higher resolution viewing or imaging.

                               Delivered with order:
                               • Main Filter
                               • 6mm Blocking Filter (for 2” focuser)
                               • Transport case

Required Blocking Filter: 

  • B600 for standard visual use (standard)
  • B1200 for larger field of view and imaging applications (upgrade)
  • B1800 for larger field of view and imaging applications (upgrade)
  • B3400 for larger field of view and imaging applications (upgrade


  • Optical Aperture: 100mm
  • Etalon: Internal <0.7 Angstrom
  • Tuning: Tilt
  • Image Scale: N/A
  • Focal Length: N/A
  • F Ratio: N/A
  • Storage: Aluminum finished hard case with fitted foam
  • Weight: 8 lbs









Name Lunt - 100mm Ha Etalon Filter
Manufacturer Lunt Solar Systems
Model LS100FHa


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