The LS230THa is a triplet ED apochromatic refractor with modular design! With the optional accessories, the telescope can also be used for night sky observations, as well as for observing the Sun in the Ca-K wavelength and in white light!

The LS230THa/B3400 is a complete telescope for observing the sun in H-alpha light, with 230mm free aperture (no central obstruction) and 910mm focal length. The higher resolution compared to telescopes with smaller aperture allows the observer to dive into the fine details and surface phenomena of our ever-changing Sun. The higher resolution allows higher magnifications, bringing the fine details of the Sun to life in the eyepiece or on the screen.

An internal Etalon filter with the innovative air-pressure tuning system Pressure Tuner achieves a bandwidth of &lt 0.7 Angstroms. The tuning is done by slightly changing the air pressure in a pressure chamber inside the telescope. This changes the refractive index of the air, making it easy to adjust to the H-alpha line. The pressure tuner guarantees an homogeneous image without central obstruction and a permanently protected etalon without wear. A set of collimating lenses installed in the telescope ensures best performance.

Fine adjustment is achieved by a 2' Starlight Instruments Feather Touch focuser with 1.5' travel and 10:1 reduction.

Blocking-filter is the B3400. The B3400 is good for solar imaging by cameras with very large CCD chip and can also be used for visual solar observing. The B3400 blocking filter is fix installed inside the 2' Feather Touch focuser.

Also the LS230THa telescope is upgradeable with the additional available DSII double-stack system. The optional DSII system is a internal double stack module with Pressure Tuner, that provides a bandwidth &lt 0.5 Angstrom. More details on the solar surface will become visible by reducing the bandwidth.

Modular design:

  • The H-alpha Etalon system can be easily removed from the telescope. With the additionally available conversion kit the 3-lens ED Apochromat can be used as a normal telescope for observation and imaging of the night sky.
  • Also available is a Ca-K module specially developed for the LS230T, also available as a complete set with the conversion kit. This also allows to observe the sun in the blue calcium wavelength.
  • A Herschel-wedge can also be used at the conversion kit for observing the sun in white light.
  • This makes the LS230T a completely universal usable telescope!


  • Triplet ED apochromatic refractor
  • Aperture: 230mm (no central obstruction)
  • Focal length: 910mm
  • Bandwidth: internal Etalon with &lt 0.7 Angstrom
  • Tuning: air-pressure tuning system
  • Blocking-filter: B3400 with 2' connection
  • Focuser: Starlight Instruments Feather Touch focuser with 10:1 reduction
  • Two tube rings with carrying handle
  • Dove tail bar with GP level for astronomical mounts

The kit includes:

  • LS230THa H-alpha solar telescope
  • Pressure Tuner system
  • B3400 blocking-filter in straight extension tube
  • 2' Feather Touch focuser
  • Tube rings with dove tail bar
  • Transport case
  • Instruction manual
Brand LUNT Solar Systems
Warranty 2 года
EAN 0753215774319
Package size (LxWxH) 155x0x0 cm
Shipping Weight 31 kg
Optical design refractor
Objective lens diameter (aperture), mm 230
Focal length, mm 1610
Focuser 2', 2-speed (10:1), 1.5' draw tube travel (Starlight Instruments Feather Touch®)
Blocking filter B3400
Bandwidth, Angstrom <0.7
Optical tube mounting mode fastening rings, dovetail plate
User level experienced users
Observed object planets of the Solar System and deep-sky objects

Returns Policy

We have a 14-day return policy. If you are not satisfied with your purchase, please return it in its original packaging and be sure to put the original product packaging inside the shipping box to avoid any damage..

All items must be in their original condition and unused. The value of your purchase will be refunded. .

Shipping charges will not be refunded.

If the return is due to a defective product, you may be compensated for the return shipping.

Please contact us for more details if you need to make a return..


- From 0 to 2 kg - shipping cost: 12,50 euros.

- From 2.001 kg to 30 kg - shipping cost: 17,00 euros.

- From 30,001 kg - shipping cost: 30,00 euros.

In case of collection at our warehouse or resale points - the shipping is free.

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