The Lumicon 2" Prime Focus Adapter LC1025 drops into 2" eyepiece holder and presents male T-threads (42mm x 0.75mm) for T-ring attachment. For prime focus photography where back-focus is not critical and for variable focal reduction on Lumicon's Giant Easy Guiders Giant Focal Reducers and Cassegrain Rich-Field Viewer. Includes 2"/48mm filter threads.
