The #17657 SCT Long Thread screws directly onto camera systems that use the longer variety of SCT Threads and presents the OPTEC-2300 male dovetail for attachment of any device with an OPTEC-2300 receiver.
- Outside Diameter: 2.45" (62.2mm)
- Overall Height: 0.75" (19mm)
- Clear Aperture: 1.78" (45.2mm)
- Weight: 1.6 oz (45.4 g)
- Back-focus Usage: 0.1" (2.54mm)
- Telescope Side Connection: OPTEC-2300 Dovetail
- Camera Side Connection:: 2" SCT Long-Threads