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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.
Shelyak T-mount front part for the Lhires III

Shelyak T-mount front part for the Lhires III

by Shelyak
SKU SHK-PU0019
$125.00 - $125.00
$125.00
$125.00 - $125.00
$125.00
Price Match Policy!
  • Replaces the standard Lhires III front panel
  • Provides a female M42x0.75mm T-mount thread
  • Enables direct connection to custom optical trains
  • Installs with the original 8 screws
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • T-mount front part for the Lhires III

    The Shelyak T-mount Front Part for the Lhires III converts the spectroscope's input to a standard female M42x0.75mm thread for direct connection to custom optical trains. Installation replaces the stock panel via 8 screws, creating a secure interface when the default Schmidt-Cassegrain adapter or 2-inch nosepiece is unsuitable for your setup.

    Lhires III T-Mount Adapter: M42x0.75mm Female Thread for Custom Setups

    This T-mount adapter is the dedicated solution for integrating the Lhires III spectroscope into imaging setups that cannot use the standard Schmidt-Cassegrain adapter or a 2-inch nosepiece. It creates a direct, threaded M42x0.75mm connection point, eliminating potential flexure from slip-fit adapters and ensuring rigid collimation.

    • Direct Threaded Connection: Provides a secure M42x0.75mm female T-thread for direct attachment to off-axis guiders, filter wheels, or custom camera spacers.
    • Replaces Stock Panel: The part is a complete replacement for the original Lhires III front panel, installed by removing the existing 8 screws for a rigid, factory-fit integration.
    • Alternative to Standard Adapters: Specifically designed for astronomers whose setups require a T-thread interface instead of the included SCT or 2-inch adapters.

  • When would I need the T-mount Front Part for my Lhires III?

    You need this part if your telescope, focuser, or camera setup requires a direct M42x0.75mm T-thread connection. It replaces the standard Lhires III front panel to provide this common interface, bypassing the need for the included SCT adapter or 2" nosepiece.

    How is the T-mount Front Part installed on the Lhires III?

    Installation is straightforward. You simply remove the 8 screws holding the standard front panel on your Lhires III spectroscope, take the old panel off, and attach this new T-mount front part using the same 8 screws.

    Can I use this T-mount Front Part with my 8" f/10 Schmidt-Cassegrain?

    While you can, the standard adapter included with the Lhires III is already designed for Schmidt-Cassegrain telescopes. This T-mount part is intended for situations where the standard SCT adapter does not work, such as when you have an off-axis guider or filter wheel with T-threads in your imaging train.

    Does this part change the back focus of the Lhires III?

    This part replaces the front panel and establishes a new, standard M42x0.75mm connection point. You will need to calculate your spacing from this new reference plane to your camera sensor. It is not a simple spacer but a fundamental change to the instrument's input interface.

    Is the T-mount Front Part for the Lhires III compatible with ZWO or QHY cameras?

    Yes. Most dedicated astronomy cameras from brands like ZWO and QHY use M42x0.75mm T-threads as their primary connection standard. This front part allows you to create a direct, rigid, all-threaded connection from your camera and accessories to the Lhires III spectroscope.

    What is the thread specification for this Lhires III T-mount adapter?

    The adapter provides a standard female T-mount thread, which is specified as M42x0.75mm. This ensures compatibility with the vast majority of T-rings, spacers, and accessories in the astronomy market.

  • Thread Type Female T-Mount (M42x0.75mm)
    Compatibility Shelyak Lhires III Spectroscope
    Installation Replaces front panel (8 screws)

    • T-mount front part for Lhires III

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  • Shelyak 1-Year Warranty