Lunt - 100mm Ha Telescope w/ Internal Etalon and B3400

The LS100T/Ha is a complete Solar Telescope. The refractor based system has a precision aligned singlet chromatic lens with a 100 mm aperture. The front singlet lens reduces the stray-light over an achromat by half. With the matched collimation lens set, it also fully corrects on axis coma, astigmatism and de-centering aberrations and provides a full spherically corrected flat-field Solar-Telescope. The focal length is 800 mm providing a ~7.3 mm image through a 34 mm blocking filter. Course focus adjustment is via a slide tube. Focusing is achieved with a High Precision 2" Starlight Feather Touch Friction focuser with the a 10:1 reduction as standard equipment. An internal etalon with tune adjustment allows for a <0.7 Angstrom bandpass. Additionally the system may also be purchased with the 100mm external, front mounted Double Stack Etalon LS100FHa for a bandpass of <0.5 Angstrom. Specifications: • Aperture: 100mm • Bandpass: <0.7 Angstrom • Focal length: 800mm • Blocking filter diameter: 34mm • 2" Feather-Touch focuser with 10:1 reduction • Tube diameter: 121mm • Tube length with blocking filter: 634mm • Weight: 5 kg Delivered with order: • optical tube with 2" feather touch focuser with 2.5" travel, includes adapter • tube ring • B3400 blocking filter • dovetail • sol-searcher • transport case