Half Moon Astro
Half Moon Astro
Gear Database

ZWO 30F4 Mini Guide Scope

ZWO

ZWO 30F4 Mini Guide Scope is a small guide scope for autoguiding short to moderate focal length imaging rigs.

guide-scope $ Guide scope Guiding Travel kit
ZWO 30F4 Mini Guide Scope

Best Current Offer

Agena AstroProducts logo
Agena AstroProducts
Out of stock
$99.00

Other retailers

Specifications

Overview

Guide type
Guide scope

Optics

Aperture
30 mm
Focal length
120 mm
Focal ratio
f/4
Dawes limit
3.87"

Mechanical

Mounting
Mini guide-scope finder-style mounting
Weight
250 g

Astrophotography Fit

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

ZWO 30F4 Mini Guide Scope 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 logo
Agena AstroProducts
Agena AstroProducts
$99.00
Out of stock
Updated 9/19/2026
View Offer - $99.00
Astronomics logo
Astronomics
Astronomics
$99.00
Out of stock
Updated 9/20/2026
View Offer - $99.00
Cloud Break Optics logo
Cloud Break Optics
Cloud Break Optics
$99.00
Out of stock
Updated 9/20/2026
View Offer - $99.00

Price History

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

Astronomics Cloud Break Optics
$199.00 $164.00 $129.00 $94.00 Jul 31, 2026 Aug 26, 2026 Sep 20, 2026 Astronomics - $99.00 - Aug 1, 2026 - Out of stock Astronomics - $99.00 - Aug 2, 2026 - Out of stock Astronomics - $99.00 - Aug 3, 2026 - Out of stock Astronomics - $99.00 - Aug 4, 2026 - Out of stock Astronomics - $99.00 - Aug 5, 2026 - Out of stock Astronomics - $99.00 - Aug 6, 2026 - Out of stock Astronomics - $99.00 - Aug 7, 2026 - Out of stock Astronomics - $99.00 - Aug 8, 2026 - Out of stock Astronomics - $99.00 - Aug 9, 2026 - Out of stock Astronomics - $99.00 - Aug 10, 2026 - Out of stock Astronomics - $99.00 - Aug 12, 2026 - Out of stock Astronomics - $99.00 - Aug 13, 2026 - Out of stock Astronomics - $99.00 - Aug 14, 2026 - Out of stock Astronomics - $99.00 - Aug 15, 2026 - Out of stock Astronomics - $99.00 - Aug 16, 2026 - Out of stock Astronomics - $99.00 - Aug 17, 2026 - Out of stock Astronomics - $99.00 - Aug 18, 2026 - Out of stock Astronomics - $99.00 - Aug 19, 2026 - Out of stock Astronomics - $99.00 - 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$99.00 - Sep 10, 2026 - Out of stock Astronomics - $99.00 - Sep 11, 2026 - Out of stock Astronomics - $99.00 - Sep 12, 2026 - Out of stock Astronomics - $99.00 - Sep 13, 2026 - Out of stock Astronomics - $99.00 - Sep 14, 2026 - Out of stock Astronomics - $99.00 - Sep 15, 2026 - Out of stock Astronomics - $99.00 - Sep 16, 2026 - Out of stock Astronomics - $99.00 - Sep 17, 2026 - Out of stock Astronomics - $99.00 - Sep 18, 2026 - Out of stock Astronomics - $99.00 - Sep 19, 2026 - Out of stock Astronomics - $99.00 - Sep 20, 2026 - Out of stock Cloud Break Optics - $99.00 - Jul 31, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 1, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 2, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 3, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 4, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 5, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 6, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 7, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 8, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 9, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 10, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 11, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 12, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 13, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 14, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 15, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 16, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 17, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 18, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 19, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 20, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 21, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 22, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 23, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 24, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 26, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 27, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 28, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 29, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 30, 2026 - Out of stock Cloud Break Optics - $99.00 - Aug 31, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 1, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 2, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 3, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 4, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 5, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 6, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 7, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 8, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 9, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 10, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 11, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 12, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 13, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 14, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 15, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 16, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 17, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 18, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 19, 2026 - Out of stock Cloud Break Optics - $99.00 - Sep 20, 2026 - Out of stock