Lunt LS50THa Standard Kit

50mm Dedicated H-Alpha Solar Telescope The LS50THa Standard Kit is Lunt's most popular solar telescope — and the reason is straightforward. It puts genuine pressure-tuned hydrogen-alpha performance in your hands at a price that makes the first step into serious solar observation accessible without compromise. The 50mm f/7 optical system delivers a verified <0.45Å bandpass across the full unobstructed aperture. Doppler True Barometric Pressure Tuning is the defining feature — and the one that separates the LS50THa from every entry-level tilt-tuned or compression-tuned competitor. A turn of the knob shifts the etalon bandpass across the entire field simultaneously, with no sweet spot, no edge falloff, no angle-dependent variation. Watch prominences respond as you tune toward the blue wing. Watch surface structure sharpen as you shift toward the red. The chromosphere becomes something you explore in depth, not just observe from a distance. At just over three pounds with an integrated clamshell mounting base, the LS50THa is genuinely portable. It fits on any Vixen-compatible mount or a standard photo tripod. The SunLock red dot finder gets you on target safely in seconds. The helical focuser provides smooth, precise focus control for the 12mm flat-field eyepiece — 29x magnification for comfortable full-disk views and detailed prominence surveys. The aluminium hard case with custom foam insert travels as well as the telescope itself. The LS50THa Standard is also a starting point, not a ceiling. Add the LS50C compact double-stack filter at any time — it threads directly onto the front of the OTA in seconds, no tools required — and combined system bandpass drops to <0.28Å. For observers who want upgraded focuser precision and a three-eyepiece set from the outset, the Enhanced Kit provides both at $200 more.   KEY SPECIFICATIONS Aperture 50mm, unobstructed Focal Length / Ratio 350mm f/7 Etalon Internal pressure-tuned, Doppler True Barometric Bandpass (Single Stack) <0.45Å — individually verified Double Stack Optional — add LS50C DS filter (sold separately) → <0.28Å combined Blocking Filter B600 — 6mm clear aperture Focuser Helical 1.25" (integrated with OTA) Eyepiece 12mm flat-field, 60° FOV, 0.1% AR — 29x on LS50THa Finder SunLock red dot finder Dovetail 4" Vixen-style (integrated clamshell) Case Aluminium hard case with custom foam insert Weight ~3 lbs Night Use Dedicated solar — daytime use only