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Black metal filter holder cylinder with M48 internal and M54 external threads for 2 inch astro filters

Baader Planetarium

Baader Planetarium DSLR-2 M48/SP54 Filter Holder 2

SKU CH-WKAK-00JM7

Holds 2" astro filters with M48 and SP54 threads and accepts 28–82 mm Hyperion DT rings for DSLR lenses

  • Optimal image quality with reduced reflections for astrophotography
  • M48 and SP54 connectors fit many cameras and telescopes
  • Securely holds standard 2" astro filters with perfect alignment
  • Internal M48 and external M54 threads for filter and ring attachment
  • Hyperion DT-Rings from 28mm to 82mm adapt to lens filter threads

Astrophotography filter adapter

The Baader Planetarium DSLR-2 M48/SP54 Filter Holder connects standard 2" astro filters to a DSLR lens via M48 and SP54 threads. It is built for photographers who want to capture deep-sky detail with a camera lens rather than a dedicated telescope. The holder maintains precise filter alignment during long exposures. It also supports UV imaging for flower and forensic work.

Capacity with 28 to 82 mm Hyperion rings

Internal M48 threads accept 5.08 cm filters while external M54 threads mate with Hyperion DT-Rings from 28 to 82 mm. This range covers most common lens filter sizes for wide-field shots. The adapter runs out when a lens thread falls outside that span or when a filter larger than 2" is required. No step rings or larger formats are supported by this unit.

Build integration needs and freedoms

The holder needs a lens with a front filter thread within the 28 to 82 mm range and a 2" filter mounted on the M48 side. It frees the user from vignetting caused by mismatched threads and removes the need for a telescope focuser for wide-field work. A camera body and lens are required; the adapter simply bridges the two thread standards.

Highlights

  • Optimal image quality with reduced reflections for astrophotography
  • M48 and SP54 connectors fit many cameras and telescopes
  • Securely holds standard 2" astro filters with perfect alignment
  • Internal M48 and external M54 threads for filter and ring attachment
  • Hyperion DT-Rings from 28mm to 82mm adapt to lens filter threads

Specifications

No published specifications for this item yet.

Questions about this item

Will the M48 and SP54 threads on this filter holder connect to my existing telescope and camera adapters?

The holder has internal M48 threads for 2" astro filters and external M54 threads for Baader Hyperion DT-Rings, so it fits standard 48 mm and 54 mm connections.

How can I verify the filter is seated without light leaks once I attach the holder to my lens?

The precision mounting keeps a standard 5.08 cm filter aligned; check visually that the filter sits flush and no gaps appear around the M48 thread when the DT-Ring is tightened.

Does the package include the Hyperion DT-Rings for my lens thread size, or must I buy them separately?

Only the M48/SP54 filter holder is supplied; Hyperion DT-Rings covering 28 mm to 82 mm lens threads are sold separately.

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