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Description
Lunt LS50FHa Front Mount 50mm Double Stack Solar FilterLS50FHa 50mm Front Mount H Alpha Solar Filter A 0. 4 tilt tuned etalon for two purposes: double stack upgrade for the Lunt LS60MT, or standalone H alpha filter for compatible customer refractors. Now with new generation etalons every unit individually tested on Lunt's precision metrology equipment. Every specification is verified, not estimated. The LS50FHa is a 50mm aperture front mounted tilt tuned H alpha filter with a verified bandpass of 0. 4. It
LS50FHa — 50mm Front-Mount H-Alpha Solar Filter A 0.4Å tilt-tuned etalon for two purposes: double-stack upgrade for the Lunt LS60MT, or standalone H-alpha filter for compatible customer refractors.
Now with new-generation etalons — every unit individually tested on Lunt's precision metrology equipment. Every specification is verified, not estimated.
The LS50FHa is a 50mm aperture front-mounted tilt-tuned H-alpha filter with a verified bandpass of 0.4Å. It serves two distinct purposes — as a double-stack etalon for the Lunt LS60MT Modular Telescope, or as a standalone H-alpha solar filter for a customer-supplied compatible refractor.
As a double-stack filter for the LS60MT: The LS50FHa mounts to the front of the LS60MT in night configuration, placing its 0.4Å tilt-tuned etalon in series with the LS60MT's internal 0.45Å pressure-tuned etalon. Combined system bandpass: <0.28Å. No factory visit required. The filter is easily removed for night-sky use.
As a standalone H-alpha filter for customer refractors: The LS50FHa retrofits a compatible customer-supplied ED refractor for daytime solar observation and is easily removed for night use. A Lunt blocking filter must be used at all times — this is a safety requirement. Select the correct blocking filter for your telescope and intended use:
- B600 — visual use on telescopes up to 540mm focal length
- B1200 — visual use up to 1,080mm / imaging up to 540mm focal length
- B1800 — visual use up to 1,620mm / imaging up to 1,080mm focal length
If you are looking for a complete standalone H-alpha solar filter package including a blocking filter and adapter, Lunt offers complete 40mm and 50mm filter packages that include both —see the LS40FHa and LS50C product listings at: luntsolarsystems.com/collections/front-mounted-etalon-systems
Specifications
- Model: LS50FHa
- Optical Aperture: 50mm — no central obstruction
- Tuning: Tilt-tuned
- Single Etalon Bandpass: 0.4Å — individually verified
- DS Combined Bandpass: <0.28Å — LS50FHa (0.4Å) + LS60MT internal PT (0.45Å) in series
- Compatible With: Lunt LS60MT in night configuration; compatible customer ED refractors
- Blocking Filter Required: Yes — sold separately
- Weight: ~2 lbs (~1kg)
- Storage: Aluminium hard case with fitted foam
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy