Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11AM Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
Enjoy rarely-seen views of the Sun's surface and rim with the Lunt Solar Systems' 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope. This dedicated solar scope features a 60mm objective lens , a 500mm focal length, and an internal etalon with a <0.75 Angstrom bandpass. The scope is offered here as a double-stacked system with an internal etalon and removable external front etalon that reduces the bandpass to <0.5 Angstrom for increased contrast and enhanced views of the seething caldron of the surface and rim activity. It comes with a 6mm blocking filter in a star diagonal configuration that fits in the Crayford-style focuser and accepts 1.25" eyepieces and accessories and should be used for visual observation only. Its dual-speed Crayford-style focuser uses a toothless friction system that allows for super-fine precision focusing without backlash. This solar scope comes without a mount or tripod, but is outfitted with a mounting base that has a 1/4"-20 threads for attaching it to most tripods or compatible mounts. For safe transportation and storage, two foam-lined hard carrying cases are included, one for the OTA and a smaller one for the front filter.
f/8.3 focal ratio
500mm focal length
Refractor-style optical path
Internal etalon with tune adjustment allows for a <0.75 Angstrom bandpass at 656nm$
Removable front etalon lowers bandpass to <0.5 Angstrom for rich contrast and enhanced surface details
True Doppler pressure tuning allows for a shift into and away from the user for enhanced viewing
Use for visual observation only
Fits into focuser and accepts 1.25" eyepieces
Star diagonal configuration
Dual-speed with 10:1 fine-tuning for precision focusing
Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
In the Box
Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Crayford Focuser, 6mm Blocking, Pressure Tuned)