Lunt 80mm H-alpha Solar Telescope - LS80THaFT
H-alpha Solar Telescope with 80mm aperture and <0.7 Angstrom bandwidth. With Feather-Touch focuser, new air-pressure tuning system, zoom eyepiece, and Sol-Searcher. Will be delivered without Blocking Filter!
The LS80THa is a precision aligned ED refractor with a fully un-obstructed 80mm optical aperture and 560mm focal length. An internal etalon with new air-pressure tuning adjustment allows for a <0.7 Angstrom bandwidth. This "Pressure Tuner" system allows a better Etalon adjustment than other systems. The ?Pressure Tuner? system adapted the Etalon to varying altitudes and atmospheric pressures for always optimal performance.
Fine adjustment is achieved with a Starlight Instruments 2" Feather Touch focuser with 10:1 reduction./p>
WARNING: This telescope will be delivered without Blocking Filter! You need a optional Lunt Blocking Filter for observing or imaging the sun. You can use all 2" Lunt Blocking filter, only the B600 is to small for this telescope.
?Aperture: 80mm (ED refractor, unobstructed)
?Focal length: 560 mm
?Bandwidth: internal Etalon with <0,7 Angstrom
?Tuning: air-pressure tuning system
?Focuser: Starlight Instruments Feather-Touch focuser with 10:1 reduction
?Weight: 3.7 kg
The telescope is upgradeable with the new DSII double-stack system. The optional DSII is a internal double stack module with "Pressure Tuner", that provides a bandwidth <0.5 Angstrom. In addition to the "Pressure Tuner" has the DSII module the advantage that there are no more Energy-Rejection-Filter installed, unlike front-mounted double-stack filters. The ERF are allready in the telescope. Therefore the sun's image is brighter and prominences can be better observed than with conventional double-stack systems.