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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.

Daystar Adapter - T-2(M)/T-2(M)

by Daystar Filters
SKU DAY-NF1TT
$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00
Price Match Policy!
  • T-2 Male to T-2 Male Threading
  • Standard M42x0.75 T-Thread Pitch
  • Connects Two Female-Threaded Accessories
  • Low-Profile Design Minimizes Added Back Focus
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Daystar Adapter - T-2(M)/T-2(M)

    The Daystar T-2(M)/T-2(M) adapter provides a male-to-male M42x0.75 T-thread connection, an essential component for joining two accessories that both feature female T-2 threads in a custom optical train.

    Connect Female T-2 Accessories: The Essential T-Thread Gender Changer

    In astrophotography, it's common to encounter a situation where two components you need to connect, such as a specific filter wheel and an off-axis guider, both have female T-2 threads. This adapter solves that problem directly by acting as a "gender changer," creating a secure, male-to-male bridge between them.

    Its primary function is to enable configurations that would otherwise be impossible. Whether you're joining two extension tubes to achieve a precise back focus distance or adapting a component that terminates in a female thread, the Daystar T-2(M)/T-2(M) adapter ensures a rigid, light-tight connection without adding significant length to your imaging setup.

  • What is the Daystar T-2(M)/T-2(M) adapter used for?

    The Daystar T-2(M)/T-2(M) adapter is a thread adapter used to connect two pieces of equipment that both have female T-2 (M42x0.75) threads. It functions as a "gender changer," allowing you to create connections that would otherwise be impossible in your imaging or visual accessory train.

    What are the thread specifications for this Daystar adapter?

    This adapter features standard male T-2 threads on both sides. The T-2 thread standard is metrically defined as M42x0.75, meaning it has a 42mm diameter and a 0.75mm thread pitch. This is the most common thread used for connecting astronomy cameras, filter wheels, and other imaging accessories.

    Will this Daystar adapter add significant length to my imaging train?

    No. While any adapter adds some length, this T-2(M)/T-2(M) adapter is designed to be as low-profile as possible. Its purpose is simply to join two components, and it contributes minimally to the overall back focus distance of your optical train. However, you should always account for its thickness when making precise spacing calculations.

    I have two T-2 extension tubes with female threads. Can the Daystar T-2(M)/T-2(M) adapter join them?

    Yes, this is a perfect use case for this adapter. You can use the Daystar T-2(M)/T-2(M) adapter to securely connect two female-threaded T-2 extension tubes, effectively creating a single, longer extension tube for achieving a specific back focus distance with your camera and corrector.

    Can I use this adapter to connect my Celestron SCT's T-adapter to a filter wheel?

    It depends on the threads of your specific components. A standard Celestron T-Adapter for SCTs has male T-2 threads on the camera side. Most filter wheels have female T-2 threads on both sides. In that standard setup, you would not need this adapter. However, if you have a custom or non-standard component in your train that results in two female threads facing each other, this adapter would be the correct solution.

    How do I prevent the Daystar T-2(M)/T-2(M) adapter from getting stuck in my accessories?

    To prevent thread binding, only tighten the adapter and accessories until they are snug. Overtightening can make them difficult to separate later. If you frequently reconfigure your setup, you can apply a very small amount of specialized lubricant for astronomical threads or use a strap wrench for gentle, non-damaging leverage if a component does get stuck.

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