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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.
ZWO T2 Male to T2 Male Adapter

ZWO T2 Male to T2 Male Adapter

by ZWO
SKU ZWO-T2-T2
$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00
Price Match Policy!
  • Connects two female M42 T-threaded components
  • Adds a fixed 2mm of optical path length
  • Male-to-male M42x0.75 thread on both sides
  • Durable black anodized metal construction reduces reflections
3 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • ZWO T2 Male to T2 Male Adapter

    The ZWO T2 to T2 Male Adapter provides a rigid, secure connection between female M42 T-threaded accessories while adding exactly 2mm of back focus to your imaging train. Each side features 3 mm of thread depth, ensuring a stable, non-flexing link between critical components like filter wheels, off-axis guiders, and camera bodies.

    Achieve Precise 2mm Spacing

    This adapter serves a dual purpose: it converts any female T2 port into a male T2 port and functions as a precise 2mm spacer. This fixed length is critical for hitting the standard 55mm back focus distance required by many field flatteners and coma correctors when combining accessories of known thicknesses. Its machined metal body ensures your optical path length remains fixed and repeatable every time you set up.

    Universal M42 T-Thread Standard

    Built around the universal M42x0.75 T-thread standard, this adapter is compatible with the vast majority of astrophotography cameras, filter wheels, off-axis guiders, and other accessories. The black anodized finish minimizes stray light reflections inside your imaging train, protecting image contrast. This is a fundamental component for configuring a robust and modular imaging setup.

  • What is the ZWO T2 Male to T2 Male Adapter typically used for?

    This adapter is primarily used to connect two accessories that both have female T2 (M42x0.75) threads. It also acts as a spacer, adding a fixed 2 mm of length to the optical path, which is often necessary to achieve the correct back focus distance for a specific corrector or flattener.

    Will this 2mm adapter help me achieve 55mm back focus with my ZWO camera?

    It can be a key component. Achieving the standard 55mm back focus requires adding up the optical path length of every item in your imaging train (camera sensor depth, filter wheel, off-axis guider, and all spacers). This 8 mm adapter helps you reach that total when combined with other T-threaded spacers and accessories.

    Can I use the ZWO T2 adapter to connect a ZWO filter wheel to a ZWO OAG?

    Yes, this is a common application. If both your ZWO filter wheel and ZWO Off-Axis Guider present female T2 threads that need to be joined, this male-to-male adapter will bridge the connection while adding 2 mm of spacing between them.

    What is the difference between T2, T-thread, and M42 threads?

    In the context of astronomy, these terms are often used interchangeably to refer to the same standard: a metric thread with a 42 mm diameter and a 0.75 mm thread pitch (M42x0.75). This adapter conforms to that universal standard.

    Is this ZWO adapter made of metal or plastic?

    The ZWO T2 to T2 adapter is machined from a single piece of black anodized metal for maximum rigidity and durability. This prevents flexure in the imaging train that could tilt your camera sensor and compromise your images.

    Does the 2 mm length of the ZWO T2 adapter include the threads?

    The 2 mm measurement refers to the total length of the adapter from end to end. This is the value you should use when calculating your total back focus distance.

  • SKU ZWO-T2-T2
    Connector Type (Side A) Male M42x0.75 (T2-Thread)
    Connector Type (Side B) Male M42x0.75 (T2-Thread)
    Optical Path Length 2 mm
    Thread Depth 3 mm ± 0.1 mm
    Construction Black Anodized Metal

    • ZWO T2 Male to T2 Male Adapter (2 mm)

      × 1

  • ZWO 2-Year Limited Warranty