The Lunt Front Mount 40mm Double Stack represents a significant upgrade for LS40 users seeking enhanced solar observation capabilities. This precision optical system delivers exceptional H-alpha contrast and detail, revealing intricate chromospheric features with remarkable clarity. The double stack configuration dramatically reduces bandwidth, enabling observation of fine prominences, filaments, and surface details that single-stack systems simply cannot resolve. Built to Lunt's exacting standards, this front-mounted design integrates seamlessly with your existing LS40 setup, providing professional-grade performance for serious solar astronomers and experienced observers.
Because the LS40FHa Solar Filter has an estimated bandpass of <0.70 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50. Allowing for higher resolution viewing and/or imaging. In addition, the part number LS40FHa is offered for this purpose or for those who already have a Lunt blocking filter.
LS40FHa Specifications: (single filter)
- Optical Aperture: 40 mm
- Etalon: <0.70 Angstrom
- Tuning: Tilt
- Focal Length: 400mm
- Filter Storage: Aluminum finished hard case with fitted foam
- Filter Weight: 0.4kg
Note: Only compatible with the 40mm Lunt Solar Telescopes
