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Lunt LS50THa Ha Telescope
Lunt LS50THa Ha Telescope
Lunt LS50THa Ha Telescope
Lunt LS50THa Ha Telescope
Lunt LS50THa Ha Telescope
Lunt LS50THa Ha Telescope
Lunt LS50THa Ha Telescope

Lunt LS50THa Ha Telescope

by Lunt Solar Systems
SKU LSS-LS50THa/B600R&P
CA$1,393.00 - CA$1,533.00
CA$1,533.00
CA$1,393.00 - CA$1,533.00
CA$1,533.00
Price Match Policy!
  • 50mm Dedicated Hydrogen-Alpha Solar Telescope
  • Internal Pressure Tuner (PT) System
  • B600 Blocking Filter for Visual Use
  • Rack & Pinion Focuser
  • Ideal for Introduction to Solar Observing
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Lunt LS50THa Ha Telescope

    The Lunt LS50THa Hydrogen-Alpha Telescope is a complete system designed for the dedicated solar observer, combining a 50mm objective lens with an internal etalon and a B600 blocking filter. This instrument utilizes Lunt's advanced pressure-tuning technology to give you precise, uniform control over the filter's bandpass, revealing dynamic details like prominences, filaments, and surface granulation across the entire solar disk.

    50mm Hydrogen-Alpha Optics: Your First View of a Dynamic Sun

    With a 50mm front objective, the LS50THa gathers enough light to produce bright, detailed views of the Sun's chromosphere. This aperture is the perfect entry point for serious solar observation, allowing you to clearly resolve arching prominences lifting off the solar limb and dark filaments snaking across the Sun's face. The view is a dramatic step up from smaller, entry-level instruments, providing the resolution needed for basic solar research and daily monitoring of solar activity.

    Lunt Pressure Tuner: Uniform Tuning Across the Solar Disk

    Unlike more common tilt-tuned systems, the LS50THa incorporates Lunt's Pressure Tuner (PT). This system adjusts the air pressure between the etalon elements, changing the refractive index to shift the filter's bandpass. The result is a perfectly even, on-band view across the entire field, free from the gradients or "sweet spots" that can compromise tilt-tuned designs. This gives you finer control to highlight specific features, whether you're targeting a faint prominence or enhancing the contrast of surface plage.

    The B600 Blocking Filter and Rack & Pinion Focuser

    This package includes the B600 blocking filter, which contains a 6mm filter ideal for visual observation. It provides a generous field of view that fully illuminates the solar disk when used with most Plössl or wide-field eyepieces. The included rack & pinion focuser provides smooth, reliable focusing to achieve a sharp image without the backlash common in lower-quality focusers, completing the LS50THa as a robust, ready-to-use instrument for exploring our nearest star.

  • What can I expect to see with the Lunt LS50THa telescope?

    The Lunt LS50THa is designed to reveal the Sun's dynamic chromosphere in the hydrogen-alpha wavelength. You can observe key solar features such as:

    • Prominences: Bright, arching structures of plasma extending from the Sun's limb (edge).
    • Filaments: The same structures as prominences, but seen as dark, thread-like features against the brighter solar disk.
    • Surface Granulation: The convective cell patterns on the Sun's surface, which look like grains of rice.
    • Plage: Bright, active regions often found near sunspots.

    How is the Pressure Tuner on the LS50THa different from a tilt-tuner?

    The Pressure Tuner (PT) adjusts the filter bandpass by changing the air pressure inside the etalon assembly. This provides a more uniform, even view across the entire field. A tilt-tuner physically tilts the etalon, which can introduce a slight brightness gradient and is generally less precise. The PT system is considered a premium feature that ensures optimal contrast everywhere in the eyepiece.

    Can I use the Lunt LS50THa to see solar flares and prominences during a solar maximum?

    Absolutely. The LS50THa is an excellent instrument for observing the heightened activity of a solar maximum. During this period, you will see more frequent and dramatic prominences, larger and more complex sunspot groups (in white light with a proper filter, not H-alpha), and a greater chance of observing the bright, transient flash of a solar flare.

    What does the "B600" blocking filter designation for the LS50THa mean?

    The "B600" refers to the blocking filter having a 6mm clear aperture. This size is optimized for visual observing and ensures the entire solar disk is illuminated without vignetting when used with most eyepieces. While it can be used for some basic imaging with small-chip cameras, a larger blocking filter (like a B1200) is recommended for cameras with larger sensors to avoid darkening at the edges of the frame.

    Is the Lunt LS50THa portable enough for a "grab-and-go" mount?

    Yes, the LS50THa is very compact and lightweight, making it a perfect match for small, portable mounts like the Sky-Watcher AZ-GTI or a simple photo tripod with a fluid video head. Its small size makes it an ideal instrument for quick setup in your backyard or for traveling to outreach events and eclipses.

    Can I upgrade the Lunt LS50THa for higher-contrast views?

    Yes, one of the key advantages of the Lunt system is its upgradability. You can add an external double-stacking filter (like the LS50FHa) to the front of the LS50THa. This narrows the filter bandpass, which significantly increases contrast on surface details like filaments and active regions, providing a more three-dimensional appearance to the solar disk.

  • SKU LS50THa
  • Lunt Solar Systems 5-Year Warranty