Introducing the LS50 Hydrogen-alpha system: a 50mm aperture (no central obstruction) integrally tuned etalon for use on any customer supplied refractor. System includes the B1800 standard for use on telescopes up to 1800mm focal length.
- Aperture: 50mm
- Focal Length: Customer Supplied Scope
- Band Pass: <0.75 Angstroms RMS
- Color: Pearl White with Black Anodize
- LS50 Ha Filter
- B1800 Blocking Filter
- Re-enforced case with foam