Designed for imaging directly through their focuser, the Alpine Astronomical Baader Diamond Steeltrack T-2 Adapter replaces the stock eyepiece holder and provides standard T-2 threads—making it compatible will all of the T-2 Astro modular accessories, extension tubes, and rings to mount DSLR bodies, body/lens combos, or other imaging systems with a safe and secure connection that will resist flexing or shifting. To help improve image quality, the adapter is outfitted with 2" filter threads.