Lunt LS152THa/B1800 H-alpha solar telescope
  • Lunt LS152THa/B1800 H-alpha solar telescope

Lunt LS152THa B1800 H-alpha solar telescope

The Lunt 152mm H-alpha OTA + B1800 BF + Feather T + P Tuner is a complete H-alpha Solar Telescope with 152mm aperture and <0.65 Angstrom bandwidth. With Feather Touch focuser, new air-pressure tuning system and for imaging usable B1800 Blocking Filter. The Lunt 152mm is an incredible technical, optical and aesthetic achievement - observe and image the Sun like never before!

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 This large solar telescope is perfect for the ambitious solar observer!
If it's a perfect image you're after, the LS152THa provides a very large and high resolution image size. The 100% unobstructed system will perform to the highest level at both low and high magnifications. Utilizing both advanced hi-contrast coatings, and the new Doppler True Pressure Tuning system, the user will be able to experience crisp, sharp, high magnification visual images, as well as utilize this system for high end digital processes.
An internal etalon with new air-pressure tuning adjustment allows for a <0.65 Angstrom bandwidth. This "Pressure Tuner" system allows a better Etalon adjustment than other systems. The “Pressure Tuner” system adapted the Etalon to varying altitudes and atmospheric pressures for always optimal performance.
The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25" eyepieces and with a T2 camera connection. Focusing is achieved with a high precision Starlight Instruments 2" Feather Touch focuser with 10:1 reduction as standard equipment.
Advanced Narrow Band Hydrogen-alpha Dedicated System.
A refractor based system with a 152mm front objective.
An unobsructed internal HD Etalon with the new Pressure Tuner allows for <0.65 Angstrom bandwidth, providing slightly higher surface detail without the loss of edge detail.
The system includes the mounting rings and dovetail, dust caps, and is delivered in an Aluminum re-enforced case.
A Lunt Zoom eyepiece is also included.


Type: Single Interference HD Etalon
Tuning: Doppler True Pressure
Aperture: 152mm
Focal Length: 900mm
Focal Ratio: F6
Bandwidth: <0.65 Angstrom @ 656.28nm
Focuser: Starlight Instrument Feather Touch
Color: Pearl White with Black and Red accents
Weight: 14 kg
Diagonal: B1800 Blocking Filter (usable for imaging)

Also available for the system is an optional, interchangeable, CaK module allowing for the research of multiple wavelengths thru the same platform.


Data sheet

Optical Design
Hydrogen Alpha (HA)
Focal Length
400 mm
Optical Tube Length (mm)
13 inch

Specific References

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