ZWO 1.25-inch Helical Focuser
ZWO
ZWO 1.25-inch Helical Focuser is a motorized focusing accessory for repeatable autofocus during long imaging sessions.
Best Current Offer
Specifications
Mechanical
- Focuser type
- Electronic focuser
Use
- Primary use
- Repeatable electronic focus for imaging automation
Overview
- Format
- 1.25-inch astronomy format
Astrophotography Fit
Best for imaging rigs where focus changes with temperature, filters, or long unattended sequences.
ZWO 1.25-inch Helical Focuser controls focus, which is one of the highest-leverage parts of an imaging rig. Electronic focus makes autofocus after temperature shifts, filter changes, and meridian flips practical.
Check mechanical compatibility, drawtube travel, load capacity, backlash, software support, and available adapters before buying. A focuser that fits poorly can add tilt or slip under camera weight.
Best paired with
- Refractors, SCTs, CDKs, or astrographs with compatible focus hardware
- ASIAIR, NINA, Voyager, FocusLynx, ASCOM, or INDI workflows as supported
- Mono filter-wheel rigs that need filter offsets and repeatable focus
Not recommended for
- Purely visual grab-and-go observing
- Focusers with unsupported brackets, backlash, slip, or insufficient payload
- Users unwilling to calibrate step size, backlash, and temperature behavior
Where To Buy
Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.
| Retailer | Price | Availability | View Offer |
|---|---|---|---|
| Cloud Break Optics Cloud Break Optics | $69.00 | In stock Updated 5/10/2026 | View Offer - $69.00 |
| Mile High Astronomy Mile High Astronomy | $69.00 | In stock Updated 5/12/2026 | View Offer - $69.00 |
| Starizona Starizona | $69.00 | In stock Updated 5/10/2026 | View Offer - $69.00 |
| ZWO USA ZWO USA | $69.00 | In stock Updated 5/15/2026 | View Offer - $69.00 |
Price History
Chronological retailer pricing with out-of-stock points shown at reduced opacity.