Extension Tubes

The new aluminium Baader T2 adjustment rings are the perfect solution to achieving that ideal spacing when using field flatteners or focal reducers.

The new aluminium Baader M48 adjustment rings are the perfect solution to achieving that ideal spacing when using field flatteners or focal reducers.

Altair Astro M48 extension rings. Perfect for anyone arranging back space from flattener to camera.

High quality M48 threaded extension tubes in various lengths. Please select the required size from the drop down box above.

Altogether 15 pc - in 5 sizes, three rings per size (thickness 0.6/0.8/1.0/1.2/1.4mm)
Well suited to tune the rotary position of all kinds of T-2 accessories in approx 90° increments, to move locking screws of eyepiece holders into a comfortable position.

High quality T2 extensions tubes available in various sizes from 3mm to 40mm. Particularly used to achieve focus with SLR and CCD cameras.

Brand new 1.25" extension tube by RVO. Provides just 1" pushback, ideal for getting that precise focus. High quality build, complete with compression ring and filter thread.

With the addition of Baader's new Finetuning Rings, each Hyperion eyepiece can now function as four eyepieces! Available in 14mm and 28mm lengths. The finetuning rings are 2" OD and threaded M48 (filter thread) on each end, so they can be installed in-between the Hyperion's removable front negative element and main body.

Farpoint Eyepiece Extension Tube 1.5" long. This handy extension pushes into a 1.25″ telescope eyepiece or focus tube to add a 1.5″ long extension.

There is often a problem with off-axis systems or folding mirror attachments, where the receptacles of normal eyepieces is just 1-2cm too short to be able to adjust the sharpness level properly.

Extends the SP54 threads 11mm on the Baader Hyperion EP

Attaches onto the SP54 threads on the Baader Hyperion eyepieces, to allow cameras to be attached.

Farpoint Eyepiece Extension Tube 2.25" long. This handy extension pushes into a 1.25″ telescope eyepiece or focus tube to add a 2.25" long extension.

ZWO T2-T2 11mm Extender Ring with Continuous Female T-thread

Nicely made extension tubes suitable for use with a wide variety of T-threaded equipment. Available in 7.5mm, 15mm & 40mm lenghts.

As spacers they are useful for increasing image scale and magnification.

Farpoint Eyepiece Extension Tube 3" long. This handy extension pushes into a 1.25″ telescope eyepiece or focus tube to add a 3" long extension.

Brand new 2" extension tube by RVO. Provides just approx 2" pushback, ideal for getting that precise focus. High quality build with filter thread.