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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.
Baader Planetarium M54 Extension Tube – 30 mm
Baader Planetarium M54 Extension Tube – 30 mm
Baader Planetarium M54 Extension Tube – 30 mm

Baader Planetarium M54 Extension Tube – 30 mm

par Baader Planetarium
UGC BAA-2958730
$57.00 - $57.00
$57.00
$57.00 - $57.00
$57.00
Égalisation de prix!
  • Adds 30 mm of Fixed Extension
  • M54 Female and Male Threads
  • Essential for Correcting Back Focus
  • Matte Black Interior Minimizes Reflections
  • Rigid, Single-Piece Construction
1 en stock
Admissible à la livraison GRATUITE aux USA pour les commandes de plus de 350$.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • M54 Extension Tube – 30 mm

    The M54 Extension Tube adds a precise 30 mm of fixed spacing to any optical train using the M54 thread standard, making it a critical component for achieving the exact back focus distance required by field flatteners, focal reducers, and other optical correctors.

    Precision 30mm Spacing for M54 Threaded Accessories

    Most optical correctors require a specific distance to the camera sensor to deliver sharp, coma-free stars. This M54 extension tube provides a solid 30 mm of that required distance, creating a rigid and secure connection that is superior to stacking multiple shorter adapters, which can introduce tilt or flexure.

    • Achieve Correct Spacing: Use this 30 mm tube as a primary component in your back focus calculation, combining it with other spacers to hit the exact distance specified by your flattener or reducer.
    • Rigid Connection: A single, machined tube ensures a flex-free connection between your camera and corrector, which is critical for maintaining optical alignment throughout an imaging session.
    • Internal Baffling: The interior is painted matte black and micro-baffled to absorb stray light, preventing reflections from reducing contrast in your final image.

  • How do I use the 30 mm M54 Extension Tube to achieve correct back focus?

    You use the M54 Extension Tube – 30 mm as part of a complete set of spacers. For example, if your flattener requires 55 mm of back focus, you would place this 30 mm tube in the imaging train and then add other smaller spacers (like 20 mm and 5 mm) to achieve the total required distance to your camera's sensor.

    Is this 30 mm M54 Extension Tube compatible with ZWO cameras and filter wheels?

    Yes. Many ZWO cameras, filter wheels, and off-axis guiders use the M54 thread standard. This 30 mm M54 Extension Tube is designed to integrate seamlessly with those components, allowing you to build a rigid imaging train with the correct spacing.

    Will this M54 Extension Tube cause vignetting with a full-frame sensor?

    The M54 thread size provides a large clear aperture that is generally sufficient to illuminate full-frame sensors (24x36 mm) without vignetting, especially in optical systems of f/4 or slower. It is a standard choice for full-frame imaging setups for this reason.

    What are the threads on this 30 mm M54 Extension Tube?

    This tube features male M54 threads on one side and female M54 threads on the other. It is designed to fit between other standard M54 astronomical accessories.

    Can I stack this 30 mm M54 Extension Tube with other extenders?

    Yes, you can thread multiple M54 extension tubes together to achieve a longer distance. However, for maximum rigidity and to minimize the risk of tilt, it is always best to use a single extension tube that is as close to your required length as possible.

    Why use a fixed 30 mm M54 tube instead of a variable extension?

    A fixed extension tube like this 30 mm M54 tube provides a more rigid and stable connection than a variable or helical extender. While variable spacers offer fine-tuning, a fixed tube is superior for locking in a known distance and preventing any possibility of flex or rotation during an exposure.

  • Extension Length 30 mm
    Thread Type M54

    • M54 Extension Tube – 30 mm

      × 1

  • This product is covered by a 2-year manufacturer's warranty against defects in materials and workmanship.