Lunt Solar Systems 100mm Ha Objective / 18mm Blocking 2" Star Diagonal Eyepiece Solar Filter Kit

Lunt Solar Systems 100mm Ha Objective / 18mm Blocking 2" Star Diagonal Eyepiece Solar Filter Kit

Lunt Solar Systems 100mm Ha Objective / 18mm Blocking 2" Star Diagonal Eyepiece Solar Filter Kit

B&H # LU100HAEF182 MFR # LS100FHA2/B1800
No Longer Available

Product Highlights

  • For Observing the Solar Surface and Edge
  • Hydrogen-Alpha (Ha) Solar Filter
  • For 100mm Objective Refractor OTAs
  • Provides <0.70 Angstrom Filtration
  • 18mm Aperture Eyepiece Filter
  • Fits 2" Focusers
  • Star Diagonal Configuration
  • Accepts 1.25" Eyepieces and Accessories
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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.

  • 1Description

Lunt Solar Systems' Solar Filter Kit gives users an objective lens hydrogen-alpha filter and a 18mm blocking eyepiece filter for observing the Sun's surface and edge. The Ha filter attaches to the front objective of a user-supplied 100mm refractor telescope to provide unobstructed <0.70 Angstrom filtration. It mounts to the front of the optical tube assembly (OTA) using a telescope-specific adapter that is sold separately. This filter must be used with the eyepiece blocking filter, and another HA filter may be threaded on it to double-stack for a <0.5 Angstrom bandpass. It comes with an aluminum foam-lined hard carrying case for safe and secure transportation and storage. The 18mm aperture blocking eyepiece filter is recommended for use on optical tube assemblies (OTAs) with a focal length of up to 1800mm for visual observation or 1200mm for astro-imaging. The star diagonal viewing configuration filter fits into 2" focusers, and accepts any user-supplied 1.25" eyepieces and accessories.

  • 100mm Hydrogen-Alpha Solar Filter

    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.

  • 18mm Blocking Eyepiece Filter (2" Star Diagonal)

    Lunt Solar Systems' 18mm Blocking Eyepiece Filter, when used with a Lunt front hydrogen-alpha filter or a dedicated solar telescope, provides a 18mm aperture for observing the Sun's surface. The star diagonal viewing configuration filter fits into 2" focusers, and accepts any user-supplied 1.25" eyepieces and accessories. This model is recommended for use with optical tube assemblies (OTAs) with a focal length of up to 1800mm for visual observation or 1200mm for astro-imaging.

  • 100mm Hydrogen-Alpha Solar Filter
    Type Hydrogen-alpha
    Size 100 mm
    Filter Factor <0.70 Angstrom
    Application Solar observation
    Weight 8.0 lb / 3.6 kg
  • 18mm Blocking Eyepiece Filter (2" Star Diagonal)
    Type 18mm blocking
    Size Barrel: 2"
    Eyepiece holder: 1.25"
    Application Solar viewing
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