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Lunt Backing Plate & Focuser - LS152T

Lunt Backing Plate & Focuser - LS152T

by Lunt Solar Systems
SKU LSS-LS152T/BP&F
CA$517.00 - CA$517.00
CA$517.00
CA$517.00 - CA$517.00
CA$517.00
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  • Converts the Lunt LS152THa solar telescope for nighttime astronomical use
  • Replaces the rear pressure-tuner assembly
  • Features a precision 2" Crayford focuser
  • Accepts standard 2" and 1.25" diagonals, eyepieces, and imaging accessories
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Lunt Backing Plate & Focuser - LS152T

    This Lunt Backing Plate & Focuser assembly converts your dedicated LS152THa solar telescope into a fully capable nighttime instrument, replacing the entire rear solar filtering and tuning assembly with a standard 2" Crayford focuser to unlock the premium optics for deep-sky and planetary observation.

    Unlock Your LS152THa: From Solar to Night-Sky Observing

    Your Lunt LS152THa telescope is built around a superb objective lens, an optic too good to be limited to only viewing the Sun. This conversion kit allows you to leverage your investment after sunset by transforming the instrument into a high-end nighttime refractor. The process involves unthreading the rear H-alpha etalon and pressure tuner assembly and installing this custom-machined backing plate and focuser in its place.

    This simple swap gives you a dual-purpose telescope, capable of rendering high-contrast, detailed views of solar prominences by day and resolving faint details in galaxies like the Whirlpool Galaxy (M51) or splitting close double stars by night.

    A Standard 2" Crayford Focuser for Universal Accessory Compatibility

    At the heart of this conversion is a robust 2" Crayford focuser, the standard for serious astronomical observation. This zero-image-shift focuser provides the smooth, precise control needed for achieving critical focus at high magnifications on targets like Jupiter's cloud bands or the Cassini Division in Saturn's rings. The 2" barrel accepts your entire collection of standard nighttime accessories, including 2" diagonals, wide-field eyepieces, Barlow lenses, and imaging cameras, without the need for proprietary adapters.

  • How does this Lunt back plate convert my LS152THa for nighttime use?

    The kit replaces the entire rear solar assembly of your LS152THa—including the H-alpha etalon, blocking filter, and pressure tuner. You simply unthread the existing solar components and thread this backing plate and 2" Crayford focuser in its place. This creates a direct, unobstructed light path from the objective lens to a standard astronomical eyepiece or camera.

    Is the LS152THa conversion process difficult or permanent?

    No, the conversion is fully reversible and designed to be straightforward. It requires no special tools. You can switch between solar and nighttime configurations as needed, allowing you to use your LS152THa as a versatile, dual-purpose instrument. Always store your solar components carefully when not in use.

    What kind of nighttime performance can I expect on objects like the Orion Nebula (M42) from my LS152THa with this focuser installed?

    With this conversion, your LS152THa functions as a high-quality refractor. You can expect sharp, high-contrast views typical of a premium air-spaced doublet. On the Orion Nebula (M42), you will be able to resolve the four main stars of the Trapezium and see extensive nebulosity, especially when paired with a wide-field 2" eyepiece.

    Will I need any other accessories to use my Lunt LS152THa at night after installing this focuser?

    Yes. This kit provides the focuser, but you will need standard nighttime accessories to view an image. At a minimum, you will require:

    • A 2" or 1.25" star diagonal
    • At least one 2" or 1.25" eyepiece

    Can I use 2" eyepieces like a Tele Vue Nagler with the Lunt LS152THa after this conversion?

    Absolutely. The 2" focuser is designed to be compatible with all standard 2" accessories, including heavy eyepieces like the Tele Vue Nagler and Ethos series. The Crayford design ensures smooth focusing action without slippage, even with a full imaging train attached.

    Does this Lunt back plate work with any other Lunt solar telescopes?

    No, this backing plate and focuser assembly is specifically designed and threaded for the Lunt LS152THa model only. It is not compatible with other Lunt telescopes like the LS50THa, LS60THa, or LS100THa.

  • SKU LS152T/BP&F
  • Lunt Solar Systems 5-Year Warranty