LUNT LS40FHa H-alpha double-stack filter for LS40THa
Double-stack filter for LS40THa telescopes.
The bandwidth of H-alpha systems can be reduced by so-called "double-stacking". A smaller bandwidth provides much more contrast at the solar surface, thereby many more details will become visible.
Double-stacking with a bandwidth of only <0.55 Angstrom is also possible at the LS40THa telescopes. Therefore Lunt Solar Systems has especially designed this LS40FHa double-stack filter in compact housing.
FEATURES
- Aperture: 40 mm
- Bandwidth: <0.55 Angstrom
- Tuning: mechanical tilt-tuning
- Housing diameter: 70mm
- Length: 60mm
- Weight: 0,3kg
- only usable together with a LS40THa telescope!
SCOPE OF DELIVERY
- LS40THa H-alpha double-stack filter
- Instruction manual
