The 1.25"/ T-2 Focusing Eyepiece Holder by Baader is a standard adapter for attaching 1.25" accessories to an adapter or telescope with T2 male thread and allows precise focusing for visual observation and astrophotography. This focusing eyepiece holder comes standard with dual clamp screws and non-marring internal compression ring.
Features Telescope side: female T2 thread Optical length: 28-34 mm (Helical focusing system)