Baader Adapter - M48/T-2

Its primary function is to connect an accessory with female M48 threads (such as a T-Ring with an M48 inner thread) to an accessory with male T-2 threads. Baader makes it for T-Rings and adapters with an M48 inner thread.

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.

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.

That depends on the threads. This adapter has a male M48 thread and a female T-2 thread, so it joins a part with a female M48 thread to a part with a male T-2 thread.

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.

Only with the right T-Ring. A standard T-Ring has a female T-2 thread, and so does this adapter, so the two do not screw together. Baader makes this ring for T-Rings and adapters with an M48 female thread: screwed into such a T-Ring, it changes the M48 inner thread into a T-2 inner thread, which then takes an accessory with a male T-2 thread.