Sky-Watcher Auto Focuser
 Sky-Watcher Auto FocuserSky-Watcher Auto Focuser 

Sky-Watcher Auto Focuser

  (25 Reviews)
✓ 2 year warranty


13x in stock shipped 1-2 working days

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About this product

Model:  swautofocuser
Part Number:  20929

Hands-free DC focusing for precise focusing with the minimum of vibration. 

Dual speed push-button operation (fast & slow). 

Can be used with the following telescopes: Evostar models 90/102/120/150, Startravel models 80/102/120/150, Skyliner models 150/200/250/300 & Explorer models 150/200/250/300. 

Requires a 9v battery for operation, not supplied. 

Note: Please check your telescope's focuser knob is removable (Sky-Watcher sometimes glue them on). If not then this product will not be suitable. 

Customer reviews

Average Rating (25 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Great focuser kit
Thursday, 14 January 2021  | 

Got this for my Williams Optics Megrez 72, which with a couple of threaded screw holes tapped into the base of the scope allowed the focus motor to sit nicely onto the telescope using the flexible coupler supplied

Rating (max 5):  
Affordable motor with speed adjustment
Thursday, 14 January 2021  | 

As a user of the SW Skymax 127 Mak I wanted to add an electric focus to improve my planetary imaging. SW don't provide a plug and play solution for this, and other vendors solutions are expensive. So I ordered this motor from FLO knowing I would have to buy some belts and gear wheels and make up a DIY attachment to fit the motor to the 127. FLO delivered the motor this week and I've put it all together and look forward to trying it out. The motor uses a PP3 9V battery and offers a useful speed adjustment. Operation is quiet. A good value product, just make sure you research attachment options if you want to use it on anything except a refractor.

Rating (max 5):  
Flimsy. Battery hard to fit.
Wednesday, 16 September 2020  | 

I installed this on my Skywatcher Explorer 200. I fitted a camera and the motor was no longer able to move the focuser. 9 volts is not sufficient power to move it. I've dismantled and refurbished the focuser and refurbished the motor and gearbox but to no avail. It just doesn't seem to have the power required. I've not contacted FLO, as its been a weird time in history! I know they are very good though...!


It sounds like the motor is faulty, this is not normal - please get in touch.

Rating (max 5):  
Skywatcher Auto-focuser
Monday, 14 September 2020  | 

Product received well packed within the terms of delivery. Put immediately to use on a 2-inch focuser via pulley and rubber band rather than flexible coupling provided to save dismantling focuser assembly. Ideal for planetary imaging with small focusing increments. Works through 10:1 reducer for minimum load.

Rating (max 5):  
Electric focuser
Wednesday, 22 July 2020  | 

Cheapest price in the field good quality and works to my satisfaction
delivery spot on
Would certainly recommend FLO

Rating (max 5):  
First light
Wednesday, 15 July 2020  | 

Great service FLO as usual
Very easy to attach and set up on startravel scope.
In operation very smooth and allows for very easy focusing. This also has little or no apparent backlash and doesn't seem to slip at all
The kit contains more items than the instructions detail meaning it will fit quite a lot of telescopes.
Also means the silver adaptor (pre attached) has to come of first on the startravel scope and is difficult to see from instructions which way up the adaptor plate goes. Thank goodness for web videos
Note the connector is flexible so give no wobble to the system
All in all a brilliant product

Rating (max 5):  
spot on
Thursday, 2 July 2020  | 

well pleased! installed on my 127 Maksutov now no more shaky astro pics RECOMMENDED!

Rating (max 5):  
Perfect in every way
Monday, 18 May 2020  | 

Great website, particularly like the reviews and advice, really helps a lot. Good prices and excellent delivery, turned up straight away.
Iíll be buying all my astronomy gear from FLO in future.

Rating (max 5):  
No more fiddling around
Tuesday, 21 January 2020  | 

Not set this up yet but I have one on another scope and know how they perform, thanks FLO for the price match

Rating (max 5):  
Sky-Watcher Auto Focuser
Tuesday, 10 December 2019  | 

I bought this to drive a low profile Skywatcher focuser recently added to replace the original high profile focuser on my 250 mm Synscan dobsonian. Although the steel base plates that come with the auto focuser are not designed to marry up with this particular focuser it was easy enough to make it all work by drilling two more holes in the plate and finding suitable bolts and washers to keep every thing straight and aligned. Worked well and, combined with the focuser upgrade, proved a very cost-effective route to enabling EEA on the Synscan. One watchout is that to revert to manual focusing (say when the 9v battery runs out) - the electric drive needs first to be disengaged by the somewhat inconvenient means of using a hex key to loosen off the grub screw gripping it to the focuser spindle.

Read all 25 customer reviews...


Please fill in the form below to ask a question.


Q1. Can you supply a longer cable?

Sky-Watcher don't offer one but some customers are successfully using longer RJ10 telephone receiver cables.

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