Lunt Internal Double Stack Filter for Lunt 80mm & 100mm Solar Telescopes
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- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
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Lunt Solar Systems has recently upgraded this double-stack system with its latest enhanced etalon configuration, delivering even greater solar contrast and finer surface detail than previous versions. All orders will ship with the newest design—no action needed!
- New-generation double-stack etalons narrow the system bandpass to <0.28Å for dramatically higher solar contrast and richer surface detail.
- Reveals finer prominences, darker filaments, sharper active regions, and intricate chromospheric texture not visible in standard single-stack views.
- Internal user-installable design preserves the telescope’s balance and nighttime versatility with no factory return required.
Lunt Internal Double Stack: Push Your Solar Observing Further!
Upgrade your Lunt Solar Systems Universal Modular Telescope with the SFPT internal double-stack module and unlock dramatically higher solar contrast and finer surface detail. Featuring Lunt’s new-generation precision etalon technology, the SFPT reduces the system bandpass from 0.45Å single-stack performance down to an ultra-high-contrast <0.28Å—revealing darker filaments, sharper active regions, richer surface texture, and more intricate prominences.
Designed specifically for Lunt 80 mm and 100 mm Universal telescopes, the SFPT installs internally without changing the telescope’s size, balance, or nighttime observing capability. For maximum tuning precision, the SFPT features dual independent Doppler True tuning controls—one for each etalon—allowing you to fine-tune solar contrast and dial in the best possible view for changing solar conditions and observing targets.
Specifications
- Model: SFPT — Internal Double Stack Module
- Compatible: LS80MT Universal Telescope | LS100MT Universal Telescope
- Single Stack Bandpass: 0.45Å (telescope internal etalon)
- Etalon Bandpass: 0.35Å — individually verified
- DS Combined Bandpass: <0.28Å — SFPT (0.35Å) + MT internal PT (0.45Å)
- Tuning: Dual independent Doppler True Barometric pressure tuning
- Installation: Customer-installed — no factory return required
- Night Sky Use: No impact — internal module does not affect night configuration
Other Information
- Country of Manufacture: United States
Lunt Internal Double Stack: Push Your Solar Observing Further!
Upgrade your Lunt Solar Systems Universal Modular Telescope with the SFPT internal double-stack module and unlock dramatically higher solar contrast and finer surface detail. Featuring Lunt’s new-generation precision etalon technology, the SFPT reduces the system bandpass from 0.45Å single-stack performance down to an ultra-high-contrast <0.28Å—revealing darker filaments, sharper active regions, richer surface texture, and more intricate prominences.
Designed specifically for Lunt 80 mm and 100 mm Universal telescopes, the SFPT installs internally without changing the telescope’s size, balance, or nighttime observing capability. For maximum tuning precision, the SFPT features dual independent Doppler True tuning controls—one for each etalon—allowing you to fine-tune solar contrast and dial in the best possible view for changing solar conditions and observing targets.
Specifications
- Model: SFPT — Internal Double Stack Module
- Compatible: LS80MT Universal Telescope | LS100MT Universal Telescope
- Single Stack Bandpass: 0.45Å (telescope internal etalon)
- Etalon Bandpass: 0.35Å — individually verified
- DS Combined Bandpass: <0.28Å — SFPT (0.35Å) + MT internal PT (0.45Å)
- Tuning: Dual independent Doppler True Barometric pressure tuning
- Installation: Customer-installed — no factory return required
- Night Sky Use: No impact — internal module does not affect night configuration
- 1x Internal double stack filter
- 1x Aluminium hard case with fitted foam
Lunt Solar Systems has recently upgraded this double-stack system with its latest enhanced etalon configuration, delivering even greater solar contrast and finer surface detail than previous versions. All orders will ship with the newest design—no action needed!
- New-generation double-stack etalons narrow the system bandpass to <0.28Å for dramatically higher solar contrast and richer surface detail.
- Reveals finer prominences, darker filaments, sharper active regions, and intricate chromospheric texture not visible in standard single-stack views.
- Internal user-installable design preserves the telescope’s balance and nighttime versatility with no factory return required.
Lunt Internal Double Stack: Push Your Solar Observing Further!
Upgrade your Lunt Solar Systems Universal Modular Telescope with the SFPT internal double-stack module and unlock dramatically higher solar contrast and finer surface detail. Featuring Lunt’s new-generation precision etalon technology, the SFPT reduces the system bandpass from 0.45Å single-stack performance down to an ultra-high-contrast <0.28Å—revealing darker filaments, sharper active regions, richer surface texture, and more intricate prominences.
Designed specifically for Lunt 80 mm and 100 mm Universal telescopes, the SFPT installs internally without changing the telescope’s size, balance, or nighttime observing capability. For maximum tuning precision, the SFPT features dual independent Doppler True tuning controls—one for each etalon—allowing you to fine-tune solar contrast and dial in the best possible view for changing solar conditions and observing targets.
Specifications
- Model: SFPT — Internal Double Stack Module
- Compatible: LS80MT Universal Telescope | LS100MT Universal Telescope
- Single Stack Bandpass: 0.45Å (telescope internal etalon)
- Etalon Bandpass: 0.35Å — individually verified
- DS Combined Bandpass: <0.28Å — SFPT (0.35Å) + MT internal PT (0.45Å)
- Tuning: Dual independent Doppler True Barometric pressure tuning
- Installation: Customer-installed — no factory return required
- Night Sky Use: No impact — internal module does not affect night configuration
Other Information
- Country of Manufacture: United States
- 1x Internal double stack filter
- 1x Aluminium hard case with fitted foam