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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 Adapter - M48/T-2

Baader Adapter - M48/T-2

by Baader Planetarium
SKU BAA-2958553
$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00
Price Match Policy!
  • Adapts M48 (female) threads to T-2 (male) threads
  • Connects 2-inch accessories to standard camera T-Rings
  • Part of the Baader Astro T-2 System
  • Precision-machined for a secure, no-flex fit
  • Enables use of wide-aperture correctors with T-2 cameras
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader Adapter - M48/T-2

    The Baader M48/T-2 Adapter is a fundamental component for astrophotographers, bridging the two most common thread standards in modern imaging trains. This adapter creates a secure, direct connection between larger M48 accessories, like 2-inch filter wheels and field flatteners, and the standard T-2 (M42x0.75) thread found on virtually all DSLR and mirrorless camera T-Rings. Use this critical link to integrate your camera with wide-aperture correctors without introducing instability or flexure.

    Seamlessly Connect M48 Correctors to T-2 T-Rings

    Modern field flatteners, reducers, and coma correctors increasingly use the M48 (2-inch filter) thread standard to provide a wider, unvignetted field for full-frame and large APS-C sensors. This adapter allows you to attach your camera, equipped with its standard T-2 T-Ring, directly to these M48-threaded accessories. It creates a rigid, unified connection that preserves the critical optical alignment of your imaging train.

    The Baader T-2 System: A Secure, Non-Flexing Connection

    As part of the comprehensive Baader Astro T-2 System, this adapter is engineered for a precise, zero-tolerance fit. Unlike generic adapters, Baader components are designed to thread together smoothly and lock down securely, preventing any tilt or flexure that can ruin long exposures. This commitment to mechanical stability ensures that your camera and corrector remain perfectly collinear with your telescope's optical axis.

  • What is the primary use for the Baader M48/T-2 Adapter?

    Its primary function is to connect an accessory with female M48 threads (like a coma corrector or field flattener) to a camera T-Ring or other accessory with female T-2 threads. This allows you to use modern, wide-aperture correctors with standard camera mounting hardware.

    Why choose this Baader M48/T-2 Adapter over a generic one?

    The Baader M48/T-2 Adapter is machined to tight tolerances as part of the integrated Astro T-2 System. This ensures a perfect fit with no slop or play, which is critical for preventing optical tilt and flexure in an imaging setup. Generic adapters can have inconsistent threading that compromises the rigidity of your optical train.

    Will the M48/T-2 Adapter introduce flexure in my imaging train?

    No. When properly tightened, the Baader M48/T-2 adapter is designed to create a solid, rigid connection. Its precise machining ensures that it becomes a stable, non-flexing part of your imaging train, maintaining the alignment between your camera and optics.

    Can I use the Baader M48/T-2 Adapter to connect a ZWO camera to my M48 flattener?

    Yes, absolutely. Most ZWO cameras use a female T-2 thread for connection. This adapter will thread into your M48 flattener, presenting a male T-2 thread that can then connect to your ZWO camera (or any required T-2 spacers).

    Does the Baader M48/T-2 adapter add to my back focus distance?

    Yes, every component in an optical path consumes some back focus. While this adapter is designed to be as thin as possible, its optical path length must be factored into your total back focus calculation to ensure your camera sensor is at the correct distance from your corrector.

    I'm imaging the Andromeda Galaxy (M31) with a full-frame DSLR and an M48 coma corrector. Is this the right adapter?

    Yes, this is the exact scenario this adapter is designed for. Your full-frame DSLR will use a T-Ring with female T-2 threads, and your M48 coma corrector needs to connect to it. The Baader M48/T-2 Adapter bridges this gap perfectly, allowing you to take advantage of the corrector's wide, flat field.

  • Net weight (kg) 0.01
    Inner Diameter / Clear Aperture (mm) 42mm (T-2)
    Outer Diameter 48
    Type of Adapter Reducing Adapter
    Optical length (mm) 0.7 mm
    Outer Connection (eyepiece/-camera-sided) M48
    Inner Connection (lens sided) M42 x 0.75 (T-2)
    Adapters Family T-2 System, M48 System
  • Baader Planetarium Warranty