ZWO Off-Axis Guider

Name: ZWO Off-Axis Guider
Brand: ZWO

ZWO

ZWO Off-Axis Guider is a small guide scope for autoguiding short to moderate focal length imaging rigs.

off-axis-guider $$ Compact setup Guiding Off-axis guider

Best Current Offer

Agena AstroProducts

In stock

$115.00

Other retailers

Astronomics (In stock)
$128.00
Cloud Break Optics (In stock)
$128.00
High Point Scientific (In stock)
$128.00
Mile High Astronomy (In stock)
$128.00
Starizona (In stock)
$128.00
Telescopes.net (In stock)
$128.00
ZWO USA (In stock)
$128.00

Specifications

Overview

Guider type: Off-axis guider

Mechanical

Format: Compact OAG
Back focus: 17.5 mm

Use

Primary use: Guiding through the main imaging telescope to eliminate guide-scope flexure

Astrophotography Fit

Best for lightweight wide-field rigs where a compact guide scope is enough.

ZWO Off-Axis Guider gives a guide camera its own small optical path so the mount can correct tracking during long exposures. It is simple, light, and effective on wide-field refractors and camera-lens rigs.

The limitation is differential flexure. As focal length rises, or as the main telescope uses a moving mirror, an off-axis guider usually gives more trustworthy corrections.

Best paired with

Short refractors, camera lenses, and portable GoTo mounts
Mini guide cameras such as ASI120MM Mini, ASI220MM Mini, or similar
Rigid rings or dovetail mounting instead of loose finder brackets

Not recommended for

SCTs, RCs, and long focal length imaging where OAG is safer
Heavy guide cameras that flex the small focuser
Trying to correct mount overload or poor balance

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
Agena AstroProducts Agena AstroProducts	$115.00	In stock Updated 9/19/2026	View Offer - $115.00
Astronomics Astronomics	$128.00	In stock Updated 9/19/2026	View Offer - $128.00
Cloud Break Optics Cloud Break Optics	$128.00	In stock Updated 9/20/2026	View Offer - $128.00
High Point Scientific High Point Scientific	$128.00	In stock Updated 9/19/2026	View Offer - $128.00
Mile High Astronomy Mile High Astronomy	$128.00	In stock Updated 9/20/2026	View Offer - $128.00
Starizona Starizona	$128.00	In stock Updated 9/20/2026	View Offer - $128.00
Telescopes.net Telescopes.net	$128.00	In stock Updated 9/20/2026	View Offer - $128.00
ZWO USA ZWO USA	$128.00	In stock Updated 9/20/2026	View Offer - $128.00

Price History

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

Astronomics Cloud Break Optics High Point Scientific Mile High Astronomy Starizona Telescopes.net ZWO USA