- Description
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Product Overview
This is a 125 mm clamshell tube holder for the Takahashi TSA-120 and FSQ-106EDX optical tubes, carrying the tube on a Takahashi mount. It is the "GT" version, which adds a mounting point for a Takahashi guide telescope so a guider can ride alongside the main optical tube rather than needing a separate bracket.
Who It's For
This is a good match if you own a TSA-120 or an FSQ-106EDX and you are guiding — the GT mount point gives the guide scope a fixed home on the same holder that carries the main tube.
Key Features & Design
- 125 mm tube diameter: sized to the TSA-120 and FSQ-106EDX optical tubes.
- "GT" guidescope mount: accepts a Takahashi guide telescope on the holder itself.
- Clamshell design: the holder opens to seat the tube and closes around it.
Recommended Uses
Mounting a TSA-120 or FSQ-106EDX to a Takahashi equatorial mount for guided deep-sky imaging, where the guide scope needs to be carried on the same holder as the main tube.
Compatibility and Accessory Notes
Sized for the 125 mm tube diameter of the TSA-120 and FSQ-106EDX. The guidescope mounting point is designed around Takahashi's own guide telescopes. If you are matching this holder to a different Takahashi optical tube, or planning to carry a third-party guide scope on it, send us the models and we will confirm the fit before you order.
Good to Know Before You Order
Sized to one tube diameter: this holder is built for 125 mm tubes and does not adjust to other Takahashi optical tubes.
The guide telescope is separate: the holder provides the mounting point; the guide scope itself is bought separately, and we can point you to the matching Takahashi guider.
Frequently Asked Questions
Is it difficult to set up?
No — the clamshell opens, the tube seats inside, and it closes around it. The guidescope mount is part of the holder, so there is no extra bracket to align.
What tube diameter does it fit?
125 mm — the TSA-120 and the FSQ-106EDX.
What does the "GT" mean?
It marks the version with the guide-telescope mounting point. The non-GT holder for the same tubes carries the optical tube only.
Do I still need a separate guidescope bracket?
No — that is what this version replaces. The mount point is built into the holder.
Bottom Line
A 125 mm clamshell tube holder for the TSA-120 and FSQ-106EDX that also carries a Takahashi guide telescope, so the guider and the main tube share one mounting point.
| Product name | 125mm Tube Holder (GT) |
|---|---|
| Product code | TKA36420G |
| Tube diameter | 125mm |
| Compatible telescopes | TSA-120, FSQ-106EDX |
| Guidescope mount | Yes — accepts Takahashi guide telescope |
| Type | Clamshell tube holder |
Shopping Guide
- Takahashi English Catalog 2025 — PDF, 8.63 MB
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