Which ZWO EAF is this page about?

The current model, sold as the EAFN: a red body with a black back plate carrying a Type-C socket and a TEMP/HBX jack. The older EAF, with a USB 2.0 Type-B socket on a red back plate, is a different model.

Does the ZWO EAF work with every ASIAIR?

No. ZWO says its motor needs more power than the first-generation ASIAIR and the ASIAIR Pro can give, and recommends a new-generation ASIAIR. The ASIAIR in turn only drives ZWO's own focuser.

What is not in the box?

The hand controller and the temperature sensor. First Light Optics lists them at £43 and £11.

How much does the ZWO EAF cost?

The prices I recorded: £199 at First Light Optics (UK), in stock; $199 at Agena Astro (US), in stock; $199 at ZWO store (Global), in stock.

What have I not tested on the EAF?

I have not recorded autofocus runs, backlash or temperature-compensation logs with this EAF.

ZWO EAF review: the Type-C motor focuser on my SQA60 Pro

Where does it rank on our leaderboard

Nine of the 46 accessories on my board, against price
Rank	Accessory	Stars for Your Buck	Recorded UK price
1	GEMINI EAF	100 out of 100	£42
2	Generic Dew Heater	93 out of 100	£9
4	Telescope Cover	90 out of 100	£25
22	Flat Panel 150mm	73 out of 100	£50
28	ASIAIR Mini	64 out of 100	£215
33	ZWO EAF	51 out of 100	£199
41	Celestron 11″ EdgeHD 0.7x Reducer	42 out of 100	£855
45	SKY ROVER 2x54 Binoculars	28 out of 100	£139
46	365 Solar Telescope Cover	5 out of 100	£73

Contents

01 Where does it rank on our leaderboard
02 Specifications and features
03 In use
04 Watch it in my videos
05 Should you buy it?
06 Questions and more about this review

In 30 seconds

Stars for Your Buck 51/100

Reviewed 1 Sep 2026 Updated 25 Sep 2026

Rank: #33 of 46 accessories
Verdict: With reservations

Written by Damon Scotting 3 min read

Buy it if

You image with a new-generation ASIAIR and want the focuser it drives natively.
You want one Type-C cable for power and data.
You want a small, light motor for a refractor focuser.

Skip it if

You still run a first-generation ASIAIR or an ASIAIR Pro: ZWO says this EAF needs more power than they supply.
You want a remote and a temperature probe in the box: ZWO sells both separately.
You want the lowest price: the GEMINI EAF costs far less.

The ZWO EAF is a 215 g Type-C motor focuser rated for a 5 kg load, and it is the focuser I mounted on my Askar SQA60 Pro for its review.

Specifications and features

Against the accessories I have reviewed

Compare with

ZWO EAF reviewed #33 of 46	ToupTek EAF #20 of 46	Altair EAF #26 of 46
Recorded UK price	£199	£170	£139
Stars for Your Buck	51/100	75/100	70/100
Model	EAFN, the standard Type-C EAF	AAF	AAF-UNIV
Housing	Metal	Aluminium alloy	Aluminium
Motor	Stepper, 7.5 degree step angle, 1:128 reduction	35 mm stepper	not recorded
Resolution	About 2.812 micrometres per step	not recorded	0.0625 degrees
Payload	5 kg	5 kg	not recorded
Power and data	USB Type-C, 5 V 500 mA	USB Type-C, 5 V	USB Type-C, 5 V
Accessory socket	Temperature sensor or hand controller	TEMP/HBX jack for the temperature sensor or hand controller	TEMP/HBX jack for the temperature sensor or hand controller
Dimensions	41 x 52 x 70.3 mm	45 x 60 x 47 mm	45 x 60 x 47 mm
Weight	215 g	not recorded	not recorded
Software	ASIAIR, ASIStudio, ASCOM and INDI	ASCOM and INDI, ToupTek AstroStation	Altair ASCOM driver (NINA, SharpCap and other ASCOM programs)
ASIAIR support	Not the first-generation ASIAIR or the ASIAIR Pro	No: the ASIAIR drives only ZWO's own focuser	No: the ASIAIR drives only ZWO's own focuser
Sensor and hand controller	Sold separately	Both in the box	Both in the box

In use

On the SQA60 Pro focuser

Beside the guide scope

The whole rig on the ZWO AM3N

Ready for a night of imaging

Watch it in my videos

What YOU Can See With a £1,249 Telescope! (Askar SQA60 Pro Review) · published 1 September 2026 · 9:06 · Watch on YouTube · 17,142 views, 239 likes on 2 Oct 2026

Jump to

0:10 The SQA60 Pro rig with the ZWO EAF
2:00 The focuser, ready for a motor
2:13 Reviewed with the ZWO EAF on it

Transcript of the video 75 words · 2 chapters · searchable

Press a time stamp to play from there.

2:00 The focuser, ready for a motor

2:00 The focuser is a 2.8 inch dual speed rack and pinion with 25mm of travel, an engraved scale and it is ready for an electronic focuser straight away, in fact Askar have just decided to go ahead and release their own range of automatic focusers.

2:13 Reviewed with the ZWO EAF on it

2:14 This news came after I already reviewed this telescope and mounted on the ZWO electronic autofocuser. 2:18 There is also a 360 degree rotator with its own engraved scale as well.

Should you buy it?

51/100 Stars for Your Buck

Pros

One Type-C cable carries power and data at 5 V, so there is no separate supply to run.
Rated for a 5 kg load from a 215 g body.
The ASIAIR drives it natively, and ASCOM and INDI drivers cover everything else.
It sat on my Askar SQA60 Pro through that telescope's review.

Cons

It does not work with the first-generation ASIAIR or the ASIAIR Pro: ZWO says they cannot supply the power it needs.
The hand controller and the temperature sensor are sold separately.
At £199 it costs more than the ToupTek AAF and the Altair AAF, which include both.

The ZWO EAF is the focuser my Askar SQA60 Pro wore for its review, and on a new ASIAIR it is the one that simply plugs in.

Three alternatives I have reviewed

Questions and more about this review

Reviewed by

Damon Scotting

The Telescope Man Verified

BSc (Hons) Physics with Astrophysics and Cosmology, Loughborough University PGCE / QTS, University of Nottingham

About Damon About Damon Damon Scotting is The Telescope Man. He holds a BSc (Hons) in Physics with Astrophysics and Cosmology from Loughborough University and a PGCE with QTS from the University of Nottingham, and taught physics in secondary schools before becoming an astronomy creator. He is a contributing writer for BBC Sky at Night Magazine and the author of 42 Wonders of Our Night Sky, and his photograph of the galaxy M100 with the dwarf planet Ceres was Highly Commended in the Astronomy Photographer of the Year 2024 competition run by Royal Observatory Greenwich. He has appeared on the BBC's Blue Peter. More than 750,000 people follow his astronomy channels on YouTube, Instagram and TikTok, and he has reviewed more than 140 telescopes, mounts, cameras, filters and accessories hands-on for this site. More about Damon · How I test · Damon's book

I review all kinds of gear: most of it I buy, some is gifted and some is loaned, and all of it is reviewed the same way. How this site is funded

Five questions, answered

Questions about the ZWO EAF

Reviewed 1 September 2026 ·Updated 25 September 2026

I review all kinds of gear. Most of it I buy, some is gifted and some is loaned, and all of it is reviewed the same way: no company sees or approves a review before it is published. Shop links marked Ad are affiliate links: I earn a commission when you buy through them, at no extra cost to you. How this site is funded

Which ZWO EAF is this page about? The current model, sold as the EAFN: a red body with a black back plate carrying a Type-C socket and a TEMP/HBX jack. The older EAF, with a USB 2.0 Type-B socket on a red back plate, is a different model. In use ↓
Does the ZWO EAF work with every ASIAIR? No. ZWO says its motor needs more power than the first-generation ASIAIR and the ASIAIR Pro can give, and recommends a new-generation ASIAIR. The ASIAIR in turn only drives ZWO's own focuser. The specifications and the comparison table ↓
What is not in the box? The hand controller and the temperature sensor. First Light Optics lists them at £43 and £11. The specifications and the comparison table ↓
How much does the ZWO EAF cost? The prices I recorded: £199 at First Light Optics (UK), in stock; $199 at Agena Astro (US), in stock; $199 at ZWO store (Global), in stock. A record, not a live price The verdict, the readers and the sellers ↓
What have I not tested on the EAF? I have not recorded autofocus runs, backlash or temperature-compensation logs with this EAF.