Lunt LS60MT Solar Telescope ST 70/420 Ha B600 All-round OTA

Lunt LS60MT Solar Telescope ST 70/420 Ha B600 All-round OTA is designed for demanding solar observation in H-alpha. Thanks to the unobstructed 60 mm etalon aperture, the telescope exploits its full resolving power. This allows you to see prominences, filaments, active regions and fine structures in the chromosphere with bright contrast and stability.

Supplied complete, modular design

What makes the LS60MT special is its modular design. The H-alpha etalon module can be easily removed and the telescope turns into a full-fledged ED-apo with FPL-51 glass for night photography, lunar and planetary observation. With a Herschel wedge you observe the sun in white light and with a CaK module you open up a completely new wavelength. This makes the LS60MT one of the most versatile solar telescopes in its class.

The pressure tuner provides precise fine adjustment of the etalon. Through subtle pressure control in the internal air chamber, the refractive index shifts precisely over the H-alpha line. The result is a homogeneous image with no central obstruction and an etalon that has no wear.

The integrated B600 blocking filter is fully suitable for visual H-alpha observation and photography with smaller sensor sizes, such as planetary cameras. The filter is built into a diagonal with 1.25” eyepiece mount and T2 connection. For large camera sensors, Lunt recommends a B1200. During night observations, this unit does not matter; then you use the focuser directly as a 2” ED-apo system.

The 2” rack-and-pinion focuser with 1:10 fine adjustment lets you focus accurately. The telescope comes complete with tube rings, tripod thread and a sturdy transport case-compact enough to take anywhere, but with the performance of a full-fledged professional solar setup.

What we recommend

The Lunt LS60MT is ideal for advanced users looking for a high-quality and future-proof H-alpha scope. The image quality is excellent, the pressure tuner is extremely reliable and the modular system makes this telescope suitable for all major solar wavelengths as well as night observation.

What you can see with it

• Protuberances along the solar rim
• Filaments and active areas
• Structures in the chromosphere such as plage and fibrils
• Solar flares (with good seeing)
• In night mode: lunar surface, Saturn, Jupiter and bright deep-sky objects

Specifications

Optics
Type: Refractor
Design: Solar H-alpha
Opening: 70 mm
Focal length: 420 mm
Aperture ratio: f/6
Resolution: 1.97″
Boundary magnitude: 11
Light output: 100
Max. useful magnification: 140x
Lens Design: Doublet (FPL-51 ED)
Coating: FMC
Filter system: H-alpha
Blocking filter: B600
Double Stack: No

Mechanical
Focuser: 2″ rack and pinion, 1:10 fine focus
Camera connector: T2
Tube weight: 3.8 kg
Tube length: 400 mm
Tripod connection: 1/4″

Mount
Type: OTA (without mount)

Included accessories
Sun Finder
Block filter in diagonal
2″ focuser
Tube Rings
Extensions
Transport case
Manual

General
Series: all-round
Shipping weight: 8.3 kg
Dimensions of suitcase: 53 × 33 × 17 cm

Application

The Lunt LS60MT is ideally suited for advanced solar observation in H-alpha and is an excellent choice for astrophotographers who want to capture dynamic solar activity. Thanks to its modular system, you can use the same telescope also at night as a high-quality ED-apo and effortlessly expand towards white light or CaK observation. Not suitable for absolute beginners; but for users looking for a reliable and professional solar observation system.