Lunt Internal Double Stack Module For Lunt 130mm and 152mm Telescopes

Lunt Internal Double Stack Module For Lunt 130mm & 152mm Telescopes

The LFPT is the internal double-stack module for Lunt's 130mm and 152mm telescopes — the DS upgrade for the largest instruments in the Lunt modular range. It adds a second precision etalon to the internal optical path, reducing combined system bandpass to <0.28Å and delivering the highest contrast H-alpha performance available in any Lunt modular telescope.

At 130mm or 152mm aperture with <0.28Å combined bandpass, the level of chromospheric detail revealed is exceptional. Individual intergranular network elements become resolvable. Active region magnetic architecture shows complexity not visible in smaller or single-stack systems.

Plage structure reveals fine internal organisation — bright knots and threads of concentrated magnetic field within the broader active region. Prominence dynamics can be studied in real time with genuine scientific detail. At this aperture and bandpass, the chromosphere becomes a research instrument as much as an observing experience.

The LFPT is designed for customer installation — no factory return required. It can be purchased at the time of telescope acquisition or at any point thereafter, making the DS upgrade a genuine deferred investment rather than a permanent commitment at point of sale. Once installed, the module does not affect the telescope's night-sky configuration — remove the solar module and the instrument performs exactly as it did before.

Features:

• Internal Double-Stack Module: Add the LFPT internal double-stack module to a compatible Lunt LS130MT or LS152 telescope, adding a second precision etalon to the internal optical path.

• Precision 0.4Å Module Etalon: Features a 0.4Å module etalon that is individually verified using Lunt’s precision metrology equipment.

• <0.28Å Combined Bandpass: Combines the LFPT's 0.4Å etalon with the telescope's internal 0.45Å etalon to achieve a combined system bandpass of <0.28Å.

• Independent Pressure Tuning: Uses independent Doppler True Barometric pressure tuning for precise control of the module's etalon.

• Customer-Installed Upgrade: Designed for customer installation, allowing the LFPT to be added without returning the telescope to the factory.

• Flexible Upgrade Timing: The module can be purchased with the telescope or added at any point afterward, providing a flexible path to internal double stacking.

• No Impact on Night-Sky Configuration: Once the solar module is removed from the optical path, the telescope's night-sky configuration remains unaffected.

• Enhanced H-Alpha Contrast: The <0.28Å double-stack configuration provides higher-contrast H-alpha solar observation, allowing finer chromospheric structures to be observed.

What's Included:

✓ Lunt Internal Double Stack Module For Lunt Telescopes

✓ Pressure Tuner

✓ Case

✓ Instructional Manual

Specifications: