Preorder notice: estimated to ship ~6 months after checkout
Turn your quality refractor into a daytime H-alpha powerhouse: 100 mm front-mounted etalon for dramatic prominences, filaments, and surface texture
Single-stack bandpass <0.70 Å delivers high-contrast surface and limb detail; double-stack with a second LS100FHa to reach ~<0.50 Å (scope-dependent) for even finer structure
Root-3, integrally tuned etalon with tilt tuning for precise on-band performance across changing conditions
Removable daytime kit: take the filter off and the same refractor returns to night-sky duty—one telescope, two worlds
Adapter included for refractors ≤102 mm; note your telescope in the order comments for a proper fit. For larger OTAs, contact Lunt for adapter options and pricing
Bundle your blocking filter to match focal length and workflow (B600/B1200/B1800/B3400); imaging users typically choose the next larger size to accommodate back focus
Built by Lunt Solar Systems for safety and performance—use only with a Lunt Blocking Filter to ensure warranted operation
Field-ready protection: packed in an aluminum hard case with fitted foam; approx. 8 lb for stable front-end mounting
Ideal for high-resolution imaging and discerning visual observers who want premium contrast and upgradeable performance
Specifications
Model: LS100FHa front-mounted H-alpha etalon
Optical Aperture:100 mm
Estimated Bandpass (single stack):<0.70 Å
Double-Stack Option: Add a second LS100FHa for ~<0.50 Å (scope-dependent)
