Accessory · MSRP $30
Astro-Tech 2" x 50mm Extension Tube
Key specifications
| Accessory type | Adapter |
|---|---|
| Weight | 0.156 kg |
| Path length | 50 mm |
All specifications
| Interface | 2" barrel in (48mm filter thread); 2" compression-ring holder out |
|---|---|
| Compatible with | 2" focuser drawtubes; Astro-Tech Ritchey-Chrétien focusers |
About
A black-anodised aluminium 2" extension tube that adds 50 mm of light path, making up for the path lost when a 2" star diagonal is swapped for a camera, or reaching focus with webcams and DSLRs on Astro-Tech Ritchey-Chrétiens. The barrel has a safety groove and the far end is a 2" holder with a brass compression ring.
Where to buy
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