Askar 120APO 0.8x Full-frame Reducer

Name: Askar 120APO 0.8x Full-frame Reducer
Brand: Askar

Askar

Askar 120APO 0.8x Full-frame Reducer is a matched reducer/flattener or field corrector for improving star shape and image scale on compatible optics.

reducer budget

Best Current Offer

Starizona

In stock

$219.00

Other retailers

Telescopes.net (In stock)
$219.00

Specifications

Optics

Optical type: Focal reducer
Reduction factor: 0.8x

Imaging

Camera format: Full-frame imaging circle
Full-frame coverage: Yes

Mechanical

Back focus: 55 mm
Weight: 0.75 kg

Astrophotography Fit

Best when it is matched to the exact telescope design and installed at the specified back-focus spacing.

Askar 120APO 0.8x Full-frame Reducer should be treated as part of the optical prescription, not a generic accessory. The right reducer or corrector can flatten the field, improve corner stars, and in reducer form make the system faster and wider.

Spacing, tilt, and sensor size are the entire game. Even a premium corrector will disappoint if the camera sits at the wrong distance or the focuser cannot hold the train square.

Best paired with

The specific telescope model it was designed for
Threaded adapters and spacers that hit the published back focus
Cameras with sensors inside the corrected image circle

Not recommended for

Unmatched telescopes with different optical prescriptions
Rigs where back focus is already consumed by filters/OAG/rotator
Trying to fix guiding, focus, or collimation issues optically

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
Starizona Starizona	$219.00	In stock Updated 9/20/2026	View Offer - $219.00
Telescopes.net Telescopes.net	$219.00	In stock Updated 9/20/2026	View Offer - $219.00

Price History

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

Starizona Telescopes.net