Lunt Solar 60mm H-Alpha Double Stack Telescope - B1200 - 2" Crayford Focuser

Lunt Solar 60mm H-Alpha Double Stack Telescope - B1200 - 2" Crayford Focuser
Item # LS-60THAD/B12C
  • The Lunt Solar Systems LS60T Hydrogen-Alpha Refractor Telescopeis a custom design 60mm singlet refractor with a focal length of 500mm.
  • The LS60THaDS50 model comes double-stacked with an unobstructed 50mm external etalon from the factory so that you can be assured of the best possible resolution and contrast.
  • The Lunt Solar Systems LS60THADS50 Hydrogen-Alpha Refractor Telescope includes a 12mm blocking filter that provides a ~4.5mm solar image within a larger tuned area than that of the 6mm blocking filter .
  • Use the Lunt double-stacked LS60T in single stack mode for prominence viewing or in double-stack mode for surface detail! Recommended for binoviewing and imaging.


Lunt Solar Systems LS60T Hydrogen-Alpha Refractor Double Stack Telescope

Now introducing the Lunt Solar Systems Double Stack LS60T-DS Hydrogen-Alpha Refractor Telescope. At its heart is the custom-made 60mm aperture precision aligned singlet lens. The focal length of the Lunt LS60 double-stacked solar telescope is 600mm, providing a ~4.5mm image through a 12mm blocking filter - far superior to a 6mm design. Course focus adjustment can be achieved via a slide tube with fine adjustments to focus accomplished through the included dual-speed Crayford style focuser with 10:1 reduction.

Lunt Solar Systems LS60T Hydrogen-Alpha Refractor Double Stack Telescope

  • The Lunt LS60T/DS will be double-stacked from the factory.
  • The Lunt LS60T/DS will utilize a 60mm unobstructed internal etalon and a 50mm unobstructed external etalon.
  • With two factory-matched etalons, you will have a versatile system that can be used single-stacked for prominence viewing, and double-stacked for observing surface detail of the Sun.
  • Single stack mode will achieve a bandpass of <0.8A.
  • Double stack mode will have a ~4.5 bandpass.
As experienced solar observers know, it takes less than 1.0 angstrom to be able to see any detail and considerably less to see striking contrast - especially on the ever changing prominences. The reduction in bandpass from an estimated 0.8 Angstroms to 0.5 Angstroms seems to bring the Sun's surface to incredible life, but getting those spectacular results by double stacking are more difficult than they sound. Both etalons need to be brought on line (tuned) and both need to be tiltable so that all ghosts are eliminated. Ideally the transmission curves should overlap perfectly when on band to provide for the best possible resolution and contrast. These hurdles can be overcome by matching the etalons at the factory.

Lunt Solar Systems creates their line of h-alpha solar telescopes in Tuscon, Arizona. They have have put together a group of experienced solar enthusiasts who are looking forward to energizing the hobby with a continued commitment to advancing technologies, pride in quality, and the highest level of customer care. These are names you'll recognize, including Andrew Lunt with 20 years of optical design, Markus Ludes with his extensive knowledge of telescope design, Manny Serrano as a design engineer and Brian Stevens assembling, repairing and troubleshooting etalon systems. And newly designed etalon systems are what it's all about.... Some of their new products will range from an entry level 50mm etalon filter through to a 160mm Lunt Solar Telescope System using different components... One that's less thermally sensitive and far less prone to de-contacting.

Lunt Solar Systems LS60T Hydrogen-Alpha Double Stack Refractor Telescope Features

  • Factory Matched dual etalon system
  • Use of unobstructed etalons.
  • Infra-red deflecting window to eliminate unwanted heat.
  • Optimized collimating system for true collimation, coma correction and off-axis reduction.
  • Stylized pearl white paint with black anodized trim.
  • nduced Transmission Filter for long term safety, durability and performance.
  • Full warranty from Lunt Solar Systems.
Lunt Solar Systems Product Number: 60THADS50/B1200C

Image shows optional Sol Searcher and eyepiece.

Additional Information

Additional Information

Solar Instrument Type Telescope
Aperture 51mm - 70mm
Emission Line H-Alpha
Manufacturer Lunt Solar
Warranty 5 Year Warranty
Blocking or ERF Aperture 12mm
Tuner Included? Yes

Customer Reviews 1 item(s)

First off the telescope comes with a mean looking metal case that looks like the ones people carry boatloads of money with, attached to thier wrist with a pair of handcuffs. Handcuffs are not included with this particular purchase but the case does come with lock and keys to help keep any destructive little fingers where they need to be. The interior of the case is made of foam with plenty of little cutouts for eyepieces and such.

The scope itself is made (as far as I can tell entirely out of metal and glass. Asthetic-wise it has the look of being a piece of well machined serious equipment. The doublestack filter screws on seamlessly making it appear as a slightly longer scope and not like something is attached.

In single stack mode it is (in my opinion leagues ahead of the Coronado P.S.T (the only other H-alpha telescope I have looked through. Not only in resolution (I was never able to see the fine featherlike details of prominences with the PST but also the amount of surface contrast (0.7 angstrom Lunt 60 vs. 1.0 angstrom PST. I have the gulf stream going directly over where I live so its rare when I can push the magnification beyond full disk but it performs well when those times arise. In doublestack mode the surface detail is absolutely breathtaking and minute magnetic field waves can be seen around active regions. All in all I am very happy with this purchase and don't see any need to upgrade in the near future.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Evokal / (Posted on 12/18/2009)
Included Items

Included Items

  • LS60 Ha Double Stacked Telescope System with a 12mm Blocking Filter
  • Crayford 2" 10:1 Focuser
  • Clam Shell with mounting holes, accepts Tele Vue SolSearcher Finder (sold separately)
  • Re-enforced case with foam
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