DayStar Quantum SE H-Alpha 0.4A Solar Filter

  • Designed for the Study of the Photosheric, Chromospheric, Prominence and Atmospheric Areas of the Sun.
  • See Prominences of the Sun in High Contrast!
  • For Use with Refractors, SCTs, Maksutov.
  • Easy Operation.
  • Anti-reflection Coated BK-7 Glass.
  • Sale
  • Regular price $8,510.00

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DayStar Quantum SE H-Alpha 0.4A Solar Filter

The DayStar Quantum H-Alpha 0.4 Angstrom Solar Filter (Standard Edition) is calibrated for the H-Alpha wavelength at 6562.8 Angstrom and is engineered to be used mainly for the study of the photosheric, chromospheric, prominence and atmospheric areas of the Sun. With its 0.4 Angstrom bandwidth, observe improved solar surface contrast and solar prominences (see images below). Use it on a variety of telescopes as it is installed at the back of the OTA rather than the front.

Features of the DayStar Quantum H-Alpha 0.4 Solar Filter

  • Live LCD readout of the filter's wavelength output (accurate to 0.1 Angstrom).
  • Red/blue wing shift buttons that can precisely tune wavelength up or down for Doppler studies.
  • Operates at 12VDC for field or batter use. A 100-240 power supply is included 
  • Serial port for computer control capability for on-screen display of filter readout. 

Technical DayStar Quantum H-Alpha 0.4 Solar Filter

  • Wavelength: 6562.8 Angstrom.
  • Multi-Coated: Yes.
  • Environmental Limits: 32 - 104 degrees Farenheit / 0 to 40 degrees Celsius.
  • Humidity: 20 - 80%, non-condensing.
  • Diameter: 3.0 inches.
  • Length: 1.7 inches.
  • Length with filter mounting plates: 2.2 inches.
  • Weight: 16.0 ounces.



Filter TypeH Alpha


  • Front and rear plates.
  • Power supply.
  • 6-foot power cord.
  • Set of international outlet plugs for US, EU, UK, and Australia.
  • Instructions.
  • Hard case.