Astro Essentials 2-inch Compression-Ring adapter for Sky-Watcher Newtonians and 72ED Refractor (M54)

Astro Essentials 2-inch Compression-Ring adapter for Sky-Watcher Newtonians and 72ED Refractor (M54)

  (15 Reviews)
✓ 2 year warranty


Out of stock due 30-40 working days

About this product

Model:  ae_adptr_1017

Screws directly to the M54 thread on the Sky-Watcher Newtonian or 72ED refractor focuser drawtube.

The brass compression-ring firmly grips any accessory with a 2" nosepiece.

Optical length 10mm.

Easy to fit: Simply unscrew the existing eyepiece/accessory holder then screw this one on. 

Also suitable for equivalent Celestron and Orion telescopes. 

Customer reviews

Average Rating (15 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
2" compression ring adapter
Monday, 28 June 2021  | 

I nice little upgrade to my 130pds, the 2" adapter which is supplied with the telescope doesn't really aid you confidence with 800 worth of imaging train hanging upside down and held on by just two screws, what the compression ring does is that it not only keeps things nice and secure by means of the increased contact surface area, but also does a better job of keeping your image train nice and square in the focuser. Nice little purchase was this.
Big thanks to FLO for the speedy delivery as always.👍

Rating (max 5):  
Astro Essentials 2-inch Compression-Ring adapter for Sky-Watcher Newtonians and 72ED Refractor (M54)
Tuesday, 22 June 2021  | 

Good quality build great delivery from flo as always

Rating (max 5):  
Big step up on screw only adaptor supplied with 250P-DS
Friday, 12 March 2021  | 

First up, excellent and very timely service, as always website very current on stock levels. Thank you.

Easy to fit onto Skywatcher 250P-DS
Much more secure and reassuringly solid feel when changing eyepieces/Barlows.

Rating (max 5):  
A must accessory
Tuesday, 2 March 2021  | 

At last an M54 adapter that has a compression ring. Now I can enjoy precise centering of eyepieces, adapters & camera's, great for collimation & all without marking the outside of the barrel or without making that slight adjustment as with the previous screw type. Excellent product really happy with it!

Rating (max 5):  
Best product for Skywatcher telescopes...
Sunday, 20 September 2020  | 

I honestly don't understand why Skywatcher puts such an inferior visual back on their ED scopes. This product is a perfect fit and you can rest assured your eyepieces and adaptors will not get scuffed or beaten up. Great machining and paint finish. I ordered this from Florida and received the item within a week. Great service and products from our friends across the pond.

Rating (max 5):  
Must have for the 72ED
Wednesday, 5 August 2020  | 

Works perfectly. I am very happy with it.

Rating (max 5):  
Thursday, 23 July 2020  | 

Perfect fit, quality item and great service from the staff at Firstlight!

Rating (max 5):  
Well made
Wednesday, 22 July 2020  | 

With a compression ring rather than just two screws this doesn't mark the body of any push-fit flattener or star diagonal. Some people have said it has problems with a tapered nose piece such as the OVL flattener has, but I have had no trouble with obtaining a secure and snug fit.

Rating (max 5):  
Big improvement
Monday, 13 January 2020  | 

This is a big improvement over what is the standard fitting on the SkyWatcher focuser. My camera feels far more secure without damaging the barrel.

Rating (max 5):  
Huge improvement over standard SkyWatcher focuser connection
Monday, 4 March 2019  | 

I've a pair of Skywatcher newtonians - an 8" Quattro and a 500p. Neither came with compression 2" fittings, and given that both of these scopes are F/4 or lower, a Paracorr or similar is a really good idea for visual use. Unfortunately the standard SkyWatcher 2" eyepiece connection will not allow a Paracorr through to the focuser tube, meaning one cannot reach focus with the standard interfaces as supplied.
This compression-ring adapter replaces the SkyWatcher screw-in adapter that has two thumbscrews only, with a fitting that has the brass compression ring. This means that the Paracorr can fit all of the way through into the focuser and can be tightly held without any possibility of marring the tube of the eyepieces or the Paracorr itself.
This replacement fitting does exactly what it says on the tin, and then just gets right out of the way, exactly like the best designs do.
I cannot recommend this fitting highly enough. If you have a Skywatcher newtonian and either you want to use a Paracorr or you want to have non-marred eyepieces, then this is the fitting for you.

Read all 15 customer reviews...


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