Lunt Double Stack Filter for Lunt 80mm & 100mm Universal Telescopes (DSII/SFPTP)

Lunt Internal Double Stack Module for LS80THa SFPT – Internal Double Stack Module for Lunt 80 mm & 100 mm Universal Day and Night Telescopes Now with NEW and IMPROVED etalons! Our latest double-stack etalons deliver up to a 40% improvement in performance, achieving ultra-narrow bandwidths down to ~0.27Å for sharper, more detailed views. Every unit is individually measured at 656.28nm using our precision scanning monochromator—so every specification is verified, not estimated. Double stacking provides a truly enhanced, high definition view of the Sun’s surface details. Notably, it lowers the bandpass of the system from ~0.35Å Angstrom to ~0.27Å Angstrom, which really makes the surface “pop”! The Lunt 80 mm and 100mm Universal Telescopes can be internally double-stacked at the time of purchase or anytime thereafter. Furthermore, neither telescope module will need to be returned to the factory for double-stacking. You can purchase the 80 mm or 100 mm single stack universal telescope initially and add the SFPT to make it a double stack unit later. This will make it more affordable to purchase our a new universal telescope and still have room for upgrades. Once you upgrade your Lunt Universal Telescope with the double stack unit, you will be able to see the finer details not previously visible. Find the latest news and photos of the Sun at NASA. In the Box Lunt Internal Double Stack Module Warranty & Manuals Lunt 5-Year Warranty