This extension adapter allows using 1.25" accessories with 2" focusers
The clamp fits into 2" focusers or adapters. it allows using 1.25" accessories like eyepieces, collimationg tools, coma correctors or big Barlow lenses.

Two connections to the telescope are possible, as there is a female thread for T2 included. Many 1.25" focusers have an additional T2 thread, so it is possible to equip them with a ClickLock receptacle.

2" filters can be used when the connection is made via the 2" barrel, as the adapter has a female M48 filter thread.

The Baader ClickLock® System at a glance
Never before an eyepiece receptacle for amateur astronomy has been manufactured thus complex. The Baader ClickLock (1.25"/2") is a precisely fitting, very massive eyepiece clamp without locking screws (!). Inserted eyepieces / CCD cameras etc. are held twist-proof but nonetheless will not be scratched! With a small 20° rotation any eyepiece will be clamped absolutely secure.

You don´t need to tighten our ClickLock clamps until your hand is damaged, as the mechanical principle origins from professional machine construction. The tool holder of modern CNC machining centers works the same way. By clever use of leverage effects, the clamping force is enhanced to the manifold extent. The inserted item is held at three sides, like with a quick-action chuck, and thus cannot carry out tilting movements anymore.

Detail of the 1.25" ClickLock system

• A 20° rotation by pressing the rotary lever is sufficient to securely hold all 1.25" accessories perfectly safe and firmly.
• Ratchet function - shows acoustic and haptic to the position of the clamp. You will be able to recognise the position of the clamp even in the dark
• Massive compression ring - holds the most expensive accessory totally safe with no scratches and marring
• The lever position can be set via 6 slotted camera screws or 6 hexagon socket head screws with hex key for making the CL clamp usable for both right-handers and left-handers.