Sub-half-angstrom bandpass. Pressure-tuned precision. The full capability of Lunt’s 50mm platform

*Mounts and tripods shown are for display purposes only and are not included with Solar Ready packages.

The LS50THa Double Stack Performance Kit is the full capability of Lunt’s 50mm dedicated platform. The LS50C compact double-stack filter threads directly onto the front of the telescope, no tools, no factory visit, installed in seconds, adding a second etalon to the optical path and reducing system bandpass to <0.50Å.

The difference is not subtle. Surface detail that blends into the background at single-stack bandwidths separates into distinct structure: plage boundaries sharpen, filament channels deepen, and active region complexity emerges with a clarity that single-stack instruments cannot match. Prominences gain definition from base to tip. The chromosphere stops being a texture and becomes a landscape.

What You’ll See

At <0.50Å, the chromosphere reveals structure invisible at wider bandwidths. Individual plage cells stand out with sharp boundaries against the surrounding chromospheric network. Filaments resolve into complex multi-strand structures with dark cores and defined edges. Active regions display the full complexity of their magnetic architecture. Prominences show internal threading and flow patterns from base to tip. The 7.2-21.5mm zoom eyepiece lets you scan full-disk context at low power, then push in tight on active regions without swapping glass. Critical when conditions are changing and you need to capitalize on moments of good seeing. Pressure tuning through both etalons gives you full Doppler control of the combined bandpass.

Why This Package

SPECIAL OFFER: When purchased as part of this premium package, the LS50C Compact Double Stack filter is included. Some competitors claim their tightest single-stack filters match double-stack contrast. We invite you to look through both and decide for yourself. The 6″ dovetail bar provides the extended rail length to balance the system with the double-stack filter mounted. The 1.25″ rack-and-pinion focuser with integrated brake delivers the mechanical precision that narrow-bandpass observing and imaging demand.