Omegon T2 Extension - Precise distance, sharp image
Omegon T2 extension - 30 mm gives you the extra space you need in your image train. This puts your camera, flattener or filter wheel at just the right distance. Your image stays sharp and even, so you spend less time searching for focus.
Simple and firm coupling
Telescope side with T2 internal thread (M42x0.75). Camera side with T2 external thread. You screw everything on directly. It's tight, straight and hassle-free.

Reliable alignment
The extension piece keeps your optical pad centered. This helps prevent tilt and backlash. Result: tight stars all the way to the corners.
Flexible stacking
Combine with other spacers to achieve exactly the right backfocus. Quickly build your ideal setup without additional adapters.
What we recommend
✓ Backfocus fine-tuning: add 30 mm in a T2 chain
✓ T2 (M42x0.75) compatible accessories: direct screwing
✓ Flattener/reducer/filter wheel with T2: correct distance, sharp image
✗ M48 systems only: use an M48 extension or T2-M48 adapter
✗ Visual use without T2 thread: not intended
Specifications
Capacity
| Feature | Description |
|---|---|
| Telescope connection | T2 (internal, M42x0.75) |
| Connection on the other side | T2 (external, M42x0.75) |
| Optical length (mm) | 30 |
General
| Feature | Description |
|---|---|
| Type | Adapters |
| Design | Extension |
| External dimensions LxWxH (mm) | 48x48x33 |





Reviews
There are no reviews yet.