ZWO 1.25-inch Helical Focuser

Name: ZWO 1.25-inch Helical Focuser
Brand: ZWO

ZWO

ZWO 1.25-inch Helical Focuser is a motorized focusing accessory for repeatable autofocus during long imaging sessions.

focuser $

Best Current Offer

Cloud Break Optics

In stock

$69.00

Other retailers

Mile High Astronomy (In stock)
$69.00
Starizona (In stock)
$69.00
ZWO USA (In stock)
$69.00

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 9/20/2026	View Offer - $69.00
Mile High Astronomy Mile High Astronomy	$69.00	In stock Updated 9/20/2026	View Offer - $69.00
Starizona Starizona	$69.00	In stock Updated 9/20/2026	View Offer - $69.00
ZWO USA ZWO USA	$69.00	In stock Updated 9/20/2026	View Offer - $69.00

Price History

Chronological retailer pricing with out-of-stock points shown at reduced opacity.

Cloud Break Optics Mile High Astronomy Starizona ZWO USA