Lumicon 2" diameter → T-Thread (T2 / M42×0.75) — Prime Focus Camera Adapter

Lumicon 2 Inch Prime Focus Camera Adapter drops into a 2″ telescope eyepiece holder and presents male T-threads (42mm x 0.75mm) for T-ring attachment. Lumicon 2 Inch Prime Focus Camera Adapter Lumicon 2 Inch Prime Focus Camera Adapter drops into a 2″ telescope 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.