Lunt LS100FHa Solar Filter

LS100FHa Solar Filter

The Lunt LS100FHa Solar Filter is a 100 mm aperture with a Root 3 non-centralized obstruction integrally tuned etalon for use on a customer-supplied refractor.

These Hydrogen-alpha filters are designed to retrofit (adapters required) the customer-supplied telescope for use during the day. They are easily removable so that the scope can continue to be used for night observing.

Because the LS100FHa Solar Filter has an estimated bandpass of <0.70 Angstroms it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50 (dependent upon scope) allowing for higher resolution viewing and/or imaging. The part number LS100FHa is offered for this purpose or for those who already have a Lunt blocking filter. A Lunt blocking filter must be used with Lunt Ha filters at all times.

Connect the Lunt LS100FHa to your telescope with the appropriate adapter (included for scopes up to 102mm), or use it to double-stack on an existing Lunt 100mm solar telescope or filter for a ~<0.5A band pass!

Required Accessories: A Lunt Solar Blocking Filter (sold separately) is required for safe viewing.

NOTE: Please include the scope you are wanting to connect the LS100FHa filter to in the notes section of your order for adapter purposes. For refractors over 102mm please email us at sales@luntsolarsystems.com for pricing and availability of adapters.

LS100FHa Specifications: (single stacked)

• Optical Aperture: 100 mm
• Etalon: Internal <0.7 Angstrom
• Tuning: Tilt
• Storage: Aluminum finished hard case with fitted foam
• Weight: 8 lb

Find information about the Sun from NASA