1.25″ filter thread male to T2 (M42 x 0.75mm) female adapter for ST-i camera.
Use this adapter to attach a SBIG ST-i camera to a male T2 M42 x 0.75mm (T-thread), such as the ONAG guider focuser.
Can be used at the ONAG SC imager port (IP), and guider port (GP).
Can be used at the ONAG XT guider port (GP).
Back focus: 7mm