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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Lunt LS152THa Solar Telescope - Pressure Tuned
Lunt LS152THa Solar Telescope - Pressure Tuned
Lunt LS152THa Solar Telescope - Pressure Tuned
Lunt LS152THa Solar Telescope - Pressure Tuned
Lunt LS152THa Solar Telescope - Pressure Tuned
Lunt LS152THa Solar Telescope - Pressure Tuned

Lunt LS152THa Solar Telescope - Pressure Tuned

by Lunt Solar Systems
SKU LSS-LS152THa/R&P
$7,849.00 - $10,522.00
$7,849.00
$7,849.00 - $10,522.00
$7,849.00
Price Match Policy!
  • Dedicated Hydrogen-Alpha Solar Telescope
  • Doppler True Pressure Tuning System
  • Internal High Definition (HD) Etalon
  • 100% Unobstructed Optical Design
  • Rack & Pinion Focuser
  • Requires Lunt Solar Blocking Filter (Sold Separately or User-Supplied)
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Lunt LS152THa Solar Telescope - Pressure Tuned

    As the largest solar telescope currently available from Lunt, the LS152THa delivers the ultimate balance of resolution and image scale for dedicated solar astronomy. This refractor-based system uses a 100% unobstructed internal HD Etalon with a Doppler True Pressure Tuning system to reveal the Sun's chromosphere with breathtaking clarity. It is engineered for the intermediate to advanced observer who demands the highest level of detail for both visual observation and high-end digital imaging.

    The Largest Unobstructed H-Alpha System from Lunt

    The LS152THa is built around a large front objective and an unobstructed internal etalon. This design eliminates the central obstruction found in some other telescope designs, resulting in higher contrast and sharpness across the entire field of view. Paired with advanced high-contrast coatings, the optical system performs at the highest level, revealing fine granulation, intricate filamentary structures, and dynamic prominence details.

    Doppler True Pressure Tuning for 3D Solar Views

    The core of the LS152THa is its Doppler True Pressure Tuning system, which provides an order of magnitude more precision than other tuning methods. This system allows you to precisely shift the bandpass of the internal etalon, targeting solar features moving towards or away from you. When observing a filament on the solar disk, you can follow its structure from base to tip, creating an enhanced, three-dimensional-like viewing experience that is invaluable for both visual observers and researchers.

    A Ready-to-Mount Optical Tube Assembly

    The Lunt LS152THa arrives as a complete optical tube assembly, ready for your existing mount. The system includes a precision Rack & Pinion focuser for smooth, repeatable focusing, critical for high-magnification viewing and imaging. It also comes with mounting rings, a dovetail plate, a Red Dot Sun Finder for safe and easy aiming, and a durable, aluminum-reinforced case for transport and storage.

    Day-to-Night and Multi-Wavelength Versatility

    While the LS152THa is a premier H-alpha instrument, its utility extends beyond a single wavelength. An optional, interchangeable CaK module is available, allowing you to study the Sun in the Calcium-K line through the same optical platform. Furthermore, with a special backing plate and focuser kit (sold separately), the entire telescope can be converted for nighttime astronomical use, turning your world-class solar scope into a high-quality refractor for deep-sky and planetary observing.

  • Does the Lunt LS152THa come with a blocking filter?

    No, this is an Optical Tube Assembly (OTA) package and a Lunt Solar Blocking Filter is required for operation. You must either use a Lunt blocking filter you already own or purchase one separately. Lunt offers the B1200, B1800, and B3400 blocking filters, with the choice depending on your intended use (visual vs. imaging) and the sensor size of your camera.

    How does the Pressure Tuner on the LS152THa help when observing solar filaments?

    The Doppler True Pressure Tuning system allows you to make extremely fine adjustments to the observed wavelength. This lets you isolate features moving at different velocities relative to you. For a solar filament, you can tune from the light emitted at its base (on the chromosphere) through its structure as it extends towards or away from you, creating a remarkable 3D effect and revealing structural details that are otherwise invisible.

    Can I use the Lunt LS152THa telescope at night?

    Yes. The LS152THa is unique in that it can be converted for nighttime astronomical viewing. By purchasing the optional backing plate and focuser kit, you can reconfigure the telescope to function as a high-quality refractor for observing planets, the Moon, and deep-sky objects like star clusters and nebulae.

    What is 'Doppler True Tuning' in the Lunt LS152THa?

    It is Lunt's proprietary, pressure-based system for adjusting the internal H-alpha etalon. By changing the air pressure in the etalon chamber, the system precisely controls the filter's central wavelength. This allows an observer to compensate for the Doppler effect, bringing into sharp contrast solar features that are moving at high velocity, such as active regions and eruptions.

    What is the main advantage of the LS152THa over smaller Lunt solar telescopes?

    The primary advantage of the Lunt LS152THa is its large, unobstructed aperture. This provides significantly higher resolution compared to smaller instruments, allowing you to see finer details in solar prominences, smaller structures within filaments, and the texture of the solar granulation and plage with greater clarity, especially at high magnification.

    Can I do CaK solar observing with the Lunt LS152THa?

    Yes, the LS152THa is a modular system. You can purchase an optional, interchangeable CaK (Calcium-K) module from Lunt. This allows you to switch from H-alpha to CaK observing, enabling the study of a different, higher-energy layer of the Sun's atmosphere through the same telescope platform.

  • GTIN LS152THa OTA
    Available Options No Blocking Filter, B1200, B1800, B3400 Blocking Filters
  • Lunt Solar Systems 5-Year Warranty