Manufacturer: LUNT Solar
Product number: LS100MTB1800RP

EUR 10.790,00


incl. 19 % VAT (DE)  
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Lunt # 0551416 LS100MT/B1800 H-Alpha Telescope with R&P Focuser
​​Modular designed multipurpose telescope, both for observing the sun in the H-alpha wavelength, as well as for night sky observations. Easy conversion between the different applications with a few simple steps. 3-lens apochromatic telescope with FPL53 glass, 100 mm aperture and 714 mm focal length - excellent image quality for H-Alpha solar observation and also for observing the starry sky at night.

With innovative air pressure tuning system, good 2 inch (50.8 mm) R&P focuser, and B1800 blocking filter.


Solar observing in H-alpha:
The LS100MT/B1800 is a complete telescope for observing the sun in H-alpha light, with 100 mm clear aperture (no central obstruction) and 714 mm focal length. The H-alpha wavelength is the most impressive spectral range to observe the sun, showing prominences at the sun´s edge, filaments and flares on the surface, and much more.

An internal etalon filter achieves a bandwidth of <0.7 Ångström with the innovative air pressure tuning system Pressure-Tuner. 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 tune to the H-alpha line. The pressure tuner guarantees a 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 with a solid 2 inch R&P focuser with 10:1 reduction.

Blocking-filter is the B1800. The B1800 is very good for visual solar observing. Also solar imaging is possible with cameras with small to large sensor chip. We recommend a LS130MT with B3400 blocking-filter when using cameras with very large sensor chips.

The star diagonal in which the blocking filter is installed is equipped as standard with a receptacle for 1.25 inch eyepieces and with a T2 camera connection.

Observing the starry night sky:
The H-Alpha Etalon system can be removed from the telescope in a few easy steps thanks to its modular design. With the additionally available conversion kit (item number 0551330) the 3-lens apochromatic refractor can then be used as a normal telescope with 100 mm aperture and 714 mm focal length for observation and photography of the night sky. The FPL53 triplet lens offers an outstandingly low colour aberration image. Common 2 inch star diagonals can be used at the high quality R&P focuser of the conversion kit 0551430.

Please note that the optionally available conversion kit 0551430 is absolutely necessary if the telescope should be used at night.

More applications:
With additionally available accessories the LS100MT offers even more possibilities!
Double-Stack

The LS100MT telescope can optionally be upgraded with the additionally available double-stack module DSII/SFPT (item number 0551395). The DSII system is an internal double-stack module. Thereby a bandwidth of <0.5 Ångström is achieved for H-alpha solar observation. Therefore much more details on the solar surface will become visible.
Solar observing in white light

When the H-alpha unit has been removed and the conversion kit 0551430 is installed, of course either a solar filter to be installed in front of the objective, or a Herschel wedge at the focuser can be used to observe the sunspots in white light.
Solar observing in Ca-K wavelength

Certainly, the Ca-K filter modules from Lunt Solar Systems can also be used at the LS100MT to observe and photograph supergranulation and other effects visible in this wavelength on the sun.
Design:3-element APO refractor with FPL53 element
Aperture:100 mm (no central obstruction)
Focal length:714 mm
Focal ratio:f/7.1
Bandwidth:internal Etalon with <0.7 Ångström
Tuning:Air pressure tuning system Pressure-Tuner
Blocking filter:B1800 with 1.25" and T2 connection
Focuser:2" Rack and pinion focuser with 1/10 reduction
Telescope connection:Two tube-rings with handle and GP style dovetail bar
Solar finder:installed inside handle
Length with blocking filter and dew shield:84 cm
Length without blocking filter and removed dew shield:65 cm
Weight:6.8 kg
LS100MT Multipurpose Telescope
Pressure Tuner
B1800 blocking filter in star-diagonal housing
2 inch rack and pinion focuser with 10:1 reduction
Tube rings with dovetail bar and solar finder
Transport case (78x33x23 cm)
Instruction manual


Conversion kit for observation of the starry night sky (0551330) not included!


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