Sky-Watcher Extension Tube for AZ4 / EQ5 / HEQ5 / AZ-EQ5

Sky-Watcher Extension Tube for AZ4 / EQ5 / HEQ5 / AZ-EQ5

  (20 Reviews)
✓ 2 year warranty


1x in stock shipped 1-2 working days

About this product

Model:  skyw_eq5_heq5_ext_tube
Part Number:  20856

The Sky-Watcher extension tube extends the height of AZ4/EQ5/HEQ5/AZ-EQ5 mounts by about 16" so is a popular choice with owners of long-tube refractor telescopes as it places the eyepiece at a more comfortable height and prevents the telescope from hitting a tripod leg.

The extension tube is installed between the top of the tripod and the mount head.

Mount stability is maintained through the metal, heavy-duty construction of the tube. 

Also suitable for use with Orion 05752 Monster Parallelogram Binocular Mount. 

Installation Video

This is for an AZ-EQ6 but the principle is the same.

Customer reviews

Average Rating (20 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Sky-Watcher Extension Tube for AZ4 / EQ5 / HEQ5 / AZ-EQ5
24 December 2022  | 

Received very quickly < 6 days. Have installed on mount (HEQ5) and it is very sturdy. Haven't field tested yet due to -40C temperatures here. However it meets expectations testing inside. Hopefully field test next month.

Rating (max 5):  
Best Customer service and great quality product with good price
13 October 2022  | 

Knowledgeable staff and after sales , you cant go wrong with FLO . Amazing product , working great !

Rating (max 5):  
Sky-Watcher Extension Tube
11 October 2022  | 

Happy with my purchase. I'm using this on my CG4 mount and it fits like a glove. The extension is high quality. Thank you for your fast shipping and great service, all the way from Uk to NY USA.

Rating (max 5):  
HEQ5 pro mount extender
20 September 2022  | 

Heavey duty well made solid metal unit. Fits well, have not installed yet but everything is correct size and shape. Building a pier so it is taking some extra time.
Shipping was awesome. Less than a week from England to California USA at a reasonable price, thanks FLO.

Rating (max 5):  
Perfect for meridian flips, imaging and the heq5 pro
23 August 2022  | 

Earlier reviews had me concerned about mount shifting during imaging but it seemed an excellent product in the abstract. Iím in the U.S., and this delightful company had it to me in less than a week. I finally tried it last night on the cocoon nebula and it was as stable as a rock! The hole for the heq5 alignment peg is large, and though I used nothing to fill the void, the pier remained firmly fixed in place. Run, donít walk to this product if you fear automated meridian flips as I once did-bring em on! Thanks, FLO.

Rating (max 5):  
Good suport and super fast shipping
03 May 2022  | 

I placed my order for the Sky-Watcher extension tube on April 26, 2022 and I received it in Canada on May 1, 2022, just 5 days! That is better than we do domestically with our post office!

The pier extension went together without issue. I did make a small insert to put on the HEQ5 pin to prevent the pier from moving, as I want to use it for imaging. It is now rock solid and does not move at all. Very pleased with the great customer service, fast shipping and the product. Highly recommended.

Rating (max 5):  
Needs modifications
17 February 2022  | 

I bought the HEQ5 tripod extension because I live near the equator and my counterweights hit the tripod legs. I was initially going to buy the pier, but the extension tube was.....cheaper. I had read that the extension tube doesn't fit tightly over the peg. The user reviews were correct, it does not fit well.
My solution was to drill a small hole through both the extension tube and the peg and tap a screw. now the extension tube is very stable and doesn't budge.
I hope my solution will help others in a similar situation.

Rating (max 5):  
Great service as usual from FLO. Terrible product though.
22 August 2021  | 

FLO are great as usual. This arrived next day. They are always my goto supplier.
Onto the extension though.
Its big and heavy. Which is good. But the baseplate is terrible. The hole for the north peg is abount 5 times the size it needs to be. The entire tube rotates with the HEQ5 on top of it. No matter how hard you do the centre nut up.
This ruins your PA. Dont buy it. Especially if you are imaging. Over all not what I expected from SkyWatcher. Not their usual precise workmanship. Massive letdown.

Rating (max 5):  
Skywatcher Extension tube for my Sabre mount
01 February 2021  | 

I purchased this extension for use with my Sabre V2 mount and it works a treat.
4 stars - one of the threads on the tube was stripped and needed re threading - QC ?
On the whole first class from FLO Again.
Thank you

Rating (max 5):  
Skywatcher Extension tube for HEQ 5 mount.
18 January 2021  | 

As always, first class service from FLO.
Slightly less impressed with the ext tube though.
The hole in the base plate is way too big for the peg on the heq5 tripod top. Even with things tightened up it's fairly easy to move the tube, particularly in the "unscrewing" direction. It needs some packing pieces in, 5mm thick each side of the peg to stop the movement.
The bolts supplied to fit the base and top plate don't come with washers of any sort. I think some spring washers would be good.

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