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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 Metal Dustcap with S54a ring dovetail
Baader Planetarium M54 Metal Dustcap with S54a ring dovetail
Baader Planetarium M54 Metal Dustcap with S54a ring dovetail
Baader Planetarium M54 Metal Dustcap with S54a ring dovetail
Baader Planetarium M54 Metal Dustcap with S54a ring dovetail

Baader Planetarium M54 Metal Dustcap with S54a ring dovetail

by Baader Planetarium
SKU BAA-2958702
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00
Price Match Policy!
  • M54 Female Threaded Connection
  • Integrated S54a Dovetail Ring
  • Durable All-Metal Construction
  • Protects Optics from Dust and Moisture
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • M54 Metal Dustcap with S54a ring dovetail

    The M54 Metal Dustcap provides a rugged, precision-fit seal for any optical component with a male M54 x 0.75 thread. Engineered from metal for superior durability over standard plastic caps, it also features an integrated S54a ring dovetail for a secure, non-threaded connection to compatible Baader Planetarium equipment.

    Robust M54 Protection with S54a Dovetail Compatibility

    This dustcap serves a critical dual function for your imaging train. Its primary role is to seal M54 threaded openings, protecting sensitive optics and sensors from dust, debris, and moisture when your equipment is stored or not in use. The all-metal construction ensures it won't crack or deform, providing long-term protection.

    Beyond simple protection, the integrated S54a dovetail makes it a true system component. It allows for a quick, secure, and perfectly centered fit on Baader accessories like the Steeltrack focuser, ensuring a positive lock that a simple push-fit or threaded cap cannot match. This specificity is also its main limitation; it is designed for the Baader S54a system and is not a universal fit for all M54 ports.

  • What is the primary function of the M54 Metal Dustcap with S54a dovetail?

    The primary function is to protect optical components with an external M54 thread from dust, moisture, and physical damage. Its durable metal construction offers a higher level of security than standard plastic caps.

    What is the advantage of the S54a dovetail on this M54 dustcap?

    The S54a dovetail allows the cap to lock securely and precisely into compatible Baader Planetarium components, such as their Steeltrack focusers. This provides a much more robust and reliable connection than a simple friction-fit or threaded cap, preventing it from being accidentally knocked off.

    Will this M54 dustcap fit any standard M54 threaded accessory?

    Yes, the internal M54 x 0.75 female threads will fit any corresponding male M54 thread. However, the external S54a dovetail feature is specific to the Baader Planetarium system and will only lock into compatible S54a receptacles.

    Why should I choose this metal M54 dustcap over a basic plastic one?

    A metal dustcap offers superior durability and a more secure fit. It is not prone to cracking like plastic, provides a better seal against the elements, and is less likely to be damaged by accidental impacts, ensuring better long-term protection for your valuable optical equipment.

    How does this M54 dustcap improve the setup on a Baader Steeltrack or Diamond Steeltrack focuser?

    On a Baader Steeltrack or Diamond Steeltrack focuser equipped with an S54a dovetail adapter, this M54 dustcap provides a perfect, zero-flex seal. It slides in and is locked in place, ensuring the interior of your focuser and optical tube are completely protected from dust ingress during storage or transport.

    Can I use this M54 dustcap to seal the front of a Baader MPCC Mark III Coma Corrector?

    Yes. The Baader MPCC Mark III has a male M48 thread on the telescope side and a male T-2/M42 thread on the camera side, but it is often used within adapters that result in an open M54 port. If your imaging train configuration leaves an exposed male M54 thread, this cap will provide a secure seal.

  • Baader Planetarium Warranty