Extension Tubes

High quality well made 1.25" extension tube. This handy adaptor allows you to push back your optical train in order to achieve focus. The adaptor is provides an extra 1.75" of extra focus travel.

High quality well made 1.25" extension tube. This handy adaptor allows you to push back your optical train in order to achieve focus. The adaptor is provides an extra 2" of extra focus travel.

Allows mounting of Baader 2" filters
Needs Hyperion DT-rings #2958028 - 2458062 and additional Stepper Rings M67 up to M82
All Baader 2" filters in version M48 thread can be customised with specific extension tubes on almost all DSRL lenses.

High quality 2" extension tubes with twist lock facility. These are used for achieving focus when you don't have enough focus travel. They are very well made with a centralizing twist lock locking system at the top.

The ZWO Extension Set includes the 16.5mm M42 to M48 and 21mm M42 to M42 extension. These are usually included with many ZWO Pro series cameras.

Consists of 3 parts: #26/#34/#35
Converts a T-2 external thread in a T-2 internal thread, and a T-2 internal thread in a T-2 external thread

RVO 2" coaxial extension tubes simply push into a 2" opening then the brass ring expands to secure into any 2" holder, then has either an M42 or an M48 fitting on top.

William Optics 4" Extension tube for FLT 98,FLT 110 and FLT 132 telescopes is very useful if you use a CCD or need more drawtube extension but still expect flexure in your train.

This very handy variable extension tube allows you to exactly set the distances between T-2 products such as coma correctors or reducers and your imaging or other optical equipment.

This very handy variable extension tube allows you to exactly set the distances between T-2 products such as coma correctors or reducers and your imaging or other optical equipment.

Auxilliary Extension. Features Male M72 and Female M72 threads. 50mm length.

Extension tube to extend your M68 optical system by an extra 100mm, extend any M68 threaded system or combine with Baaders Clicklock eyepiece clamps

Takahashi 2" extension tube 35mm for the Tak turret

Takahashi 2" 62mm extension tube 50.8 n°71 to suit the FC-76D series.

Takahashi 2" 73mm extension tube 50.8 n°71L to suit the FOA-60 series