• Front side - M75x1 male thread
• Rear side - M68x0.75 male thread

The M62x0.75 thread inside reduces reflections, and allows adding a 62mm screw-in filter is some scenarios.

Machined from high quality aluminium alloy.

This adapter is to thread onto to the draw tube end of a Feather Touch FTF3035B-A focuser (female M75x1 thread).  This will then allow to use M68x0.75 thread extension tubes that come with an Explore Scientific ED127 FCD100 APO refractor.  This allows to use a 1.0 flattener, or a 0.8 reducer, or a  2X powermate for this refractor.