Lunt Solar Systems 100mm Hydrogen-Alpha Solar Filter

Lunt Solar Systems 100mm Hydrogen-Alpha Solar Filter

Lunt Solar Systems 100mm Hydrogen-Alpha Solar Filter

B&H # LU100HAEF MFR # LS100FHA
Lunt Solar Systems 100mm Hydrogen-Alpha Solar Filter

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Expected availability: 7-10 business days

Product Highlights

  • For 100mm Objective Refractor OTAs
  • Provides <0.70 Angstrom Filtration
  • For Observing the Solar Surface and Edge
  • Hard Aluminum Foam-Lined Case

Size: 100mm

50mm

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60mm

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100mm

SAFETY FIRST: Observing the Sun without the proper protection may result in serious personal injury, including permanent eye damage and blindness, and/or damage to equipment. Never point an optic at the sun without an approved solar filter on the front of the optic. For direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder, ensure your filter is ISO 12312-2 (also written as ISO 12312-2:2015) certified. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.

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  • 1Description

Lunt Solar Systems' 100mm Hydrogen-Alpha Etalon Solar Filter attaches to the front objective of a user-supplied refractor telescope to provide non-obstructed <0.70 Angstrom filtration for observing the Sun's surface and edge. This filter must be used with an eyepiece blocking filter and is offered here to those who already have one, or wish to use it for double-stacking with another HA filter for a <0.5 Angstrom bandpass. It mounts to the front of the optical tube assembly (OTA) using a telescope-specific adapter that is sold separately, or simply screws onto the threads of another Lunt 100mm HA filter for double-stacking. The filter comes with an aluminum foam-lined hard carrying case for safe and secure transportation and storage.

Type Hydrogen-alpha
Size 100 mm
Filter Factor <0.70 Angstrom
Application Solar observation
Weight 8.0 lb / 3.6 kg
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