Alpine Astronomical Baader 2" ClickLock Eyepiece Clamp for M48 Internal Filter Thread

This eyepiece clamp is designed to fit 2" M48 internal filter threads. It provides a unique mounting system that improves upon conventional options. The ClickLock system uses three long roller bearings to keep the eyepiece centered without marking it, and eliminates wobble and off-axis tilt. A 20° twist locks and unlocks the clamping system for quick eyepiece changes while wearing gloves. No need to handle small set screws or apply excessive force.