What is the main benefit of adding the Lunt SFPT Double Stack module to my LS80MT or LS100MT?

The primary benefit is a dramatic increase in solar surface contrast. The second etalon narrows the system's light bandpass, which makes faint chromospheric details like filaments, plage, and the complex structure within active regions significantly more visible and sharply defined.

Do I need to send my Lunt telescope back to the factory to install the SFPT module?

No. The Lunt SFPT module is specifically designed to be user-installable. This allows you to upgrade your telescope at your convenience without the downtime and expense of shipping it back to the manufacturer.

How does the SFPT module affect viewing prominences versus surface detail on the Sun?

While a single-stack system is excellent for prominences, the narrower bandpass of a double-stack system excels at revealing fine surface detail. With the SFPT installed, you will see significantly more structure in filaments, active regions, and plage. The dual tuning knobs allow you to adjust the view to optimize for either prominences or surface features, though the greatest improvement is seen on the surface.

Why are there two tuning knobs on the Lunt SFPT Double Stack module?

The two knobs provide independent Doppler True tuning for each etalon (the original one in your scope and the new one in the SFPT module). This allows you to precisely shift the bandpass of each filter separately to achieve the highest possible contrast on any solar feature, compensating for Doppler-shifted light from different areas of the sun.

Will adding the SFPT module change the balance or nighttime use of my Lunt Universal Telescope?

No. Because the SFPT is an internal module, it does not change the telescope's external dimensions, weight distribution, or balance. Your Lunt Universal Telescope remains fully capable for nighttime deep-sky or planetary observing without needing to remove the module.

Can I use the Lunt SFPT module to see more detail in a solar filament near an active region?

Absolutely. This is a scenario where the SFPT excels. The enhanced contrast will make the dark, multi-strand structure of the filament stand out sharply against the bright chromosphere, and you'll be able to see the complex magnetic webbing of the surrounding active region with much greater clarity than in a single-stack view.

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Lunt Double Stack Interne Petit Format - LS80MT, LS80THaPT & LS100MT

par Lunt Solar Systems

UGC LSS-DSII/SFPTP

$1,495.00 - $1,495.00

$1,495.00

$1,495.00 - $1,495.00

$1,495.00

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Lunt Interne Double Stack Petit Format - LS80MT, LS80THaPT & LS100MT

Lunt Double Stack Interne Petit Format - LS80MT, LS80THaPT & LS100MT

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Lunt Double Stack Interne Petit Format - LS80MT, LS80THaPT & LS100MT

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