Founder Optics 2.7" Dual Threaded Adapter for Field Flattener - DTA-FF2.7 2.3 mm Eyepieces Secondary Mirror Obstruction by Area:

Secondary Mirror Obstruction by Area: 7

and other 5V DC electronics

Equipment Type: Power Cord

8° Linear Field of View (@1000 yds) / @1000 m) 410 ft (137 m) Exit Pupil 4

solar and lunar tracking modes

Founder Optics 2.7" Dual Threaded Adapter for Field Flattener - DTA-FF2.7 2.3 mm Eyepieces Secondary Mirror Obstruction by Area:This heavy duty dual threaded (2" to 2. 7") adapter is designed to attach the Founder Optics field flattener to telescopes with a 2. 7" focuser. When doing astrophotography it is important to keep the optical chain as tight and aligned as possible. This adapter uses threads instead of screws or tension adapters for the mechanical connection, which reduces the possibility of a gap or flexing in your optical chain. Paying attention to the quality of