ZWO 1.25-inch ADC

Name: ZWO 1.25-inch ADC
Brand: ZWO

ZWO

ZWO 1.25-inch ADC corrects atmospheric dispersion for sharper planetary, lunar, and solar imaging at low altitude.

corrector $

Best Current Offer

Cloud Break Optics

In stock

$134.00

Other retailers

Mile High Astronomy (In stock)
$134.00
Starizona (In stock)
$134.00
ZWO USA (In stock)
$134.00
Astronomics (In stock)
$134.10

Specifications

Optics

Accessory type: Atmospheric dispersion corrector

Mechanical

Barrel size: 1.25"

Use

Primary use: Corrects atmospheric color dispersion for planetary imaging

Astrophotography Fit

Best for high-resolution planetary imaging when targets sit low enough for color fringing to soften detail.

ZWO 1.25-inch ADC sits in the planetary imaging path and counteracts the prism-like color spread caused by Earth's atmosphere. It matters most below moderate altitudes, where blue and red detail no longer land in the same place.

It is a tuning accessory, not a magic sharpness filter. Collimation, focus, seeing, and camera sampling still set the ceiling.

Best paired with

Planetary cameras on SCTs, Maksutovs, or long refractors
Barlows or Powermates used for high effective focal ratio
RGB planetary capture where color alignment matters

Not recommended for

Wide-field deep-sky imaging trains
Targets near the zenith where dispersion is minimal
Beginners hoping to fix poor collimation or bad seeing

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	$134.00	In stock Updated 8/4/2026	View Offer - $134.00
Mile High Astronomy Mile High Astronomy	$134.00	In stock Updated 8/4/2026	View Offer - $134.00
Starizona Starizona	$134.00	In stock Updated 8/5/2026	View Offer - $134.00
ZWO USA ZWO USA	$134.00	In stock Updated 8/5/2026	View Offer - $134.00
Astronomics Astronomics	$134.10	In stock Updated 8/5/2026	View Offer - $134.10

Price History

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

Astronomics Cloud Break Optics Mile High Astronomy Starizona ZWO USA