Baader Planetarium 2″ to T2 Reducer (T-Adapter)
The Baader Planetarium 2″ to T2 Reducer is a precision-machined adapter that converts internal T2 threading (external T2 male thread) to a standard 2″ eyepiece barrel. This versatile adapter is an essential accessory for astrophotographers and visual observers who need to connect T2-threaded accessories to 2″ focusers and diagonals.
Multiple Threading Options
The adapter features sophisticated multi-threaded design. On the 2″ barrel side, it incorporates both an internal M48 filter thread and an internal T2 thread (M42 x 0.75mm), providing maximum flexibility for connecting various accessories. This dual-threading system allows you to attach M48 filters, filter wheels, or additional T2 accessories directly to the adapter.
Minimal Optical Path
With an optical length of only 2mm, this adapter adds negligible back-focus distance to your optical train - crucial when working with telescopes that have limited focuser travel or when using multiple accessories simultaneously.
Universal T-Adapter Functionality
When combined with an appropriate T-ring for your camera mount, this adapter functions as a universal 2″ T-adapter, enabling prime focus astrophotography with DSLR and mirrorless cameras through any telescope with a 2″ focuser.
Technical Specifications
- Input: Internal T2 thread (external T2 male thread attaches here)
- Output: 2″ eyepiece barrel (fits standard 2″ focusers)
- Additional threads: Internal M48 x 0.75mm and internal T2 on 2″ side
- Optical length: 2mm
- Material: Machined aluminum, black anodized
- Manufacturer: Baader Planetarium (Germany)
Baader Quality
Baader Planetarium accessories are renowned for precision manufacturing, tight tolerances, and reliable performance. This adapter maintains Baader's reputation for quality with smooth threading and wobble-free connections.