Astro Essentials 2'' 35mm Focus Extension Tube
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 Astro Essentials 2'' 35mm Focus Extension TubeAstro Essentials 2'' 35mm Focus Extension Tube 

Astro Essentials 2" 35mm Focus Extension Tube

£23.00
  (4 Reviews)
✓ 2 year warranty

:  

Out of stock due 7-10 working days

About this product

Model:  ae_2inch_ext_35mm

Useful 35mm focus extension tube. 

Brass compression fitting with two fixing screws. 

Two-inch nosepiece with milled safety undercut (prevents it falling out of focuser if clamp screw loosens). 

Threaded to accept astro filters. 

Machined from black-anodised aluminium. 

Customer reviews

Average Rating (4 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Perfect for my Vixen R200ss
Monday, 21 December 2020  | 

Just what I needed to increase the backfocus for my R200ss


Rating (max 5):  
Great product
Monday, 21 December 2020  | 

Great product. The quality is great. It fit very well with my 2" focuser and my Hyperion eyepieces. If you are using Hyperion eyepieces and Skywatcher Dobsonian you will need this extension to get focus.


Rating (max 5):  
Good quality and works perfectly
Tuesday, 13 October 2020  | 

I needed something to help with getting sufficient back focus with my 3x Barlow when imaging Mars. This works perfectly and is decent quality too.


Rating (max 5):  
Replaced Sky-Watcher 200p Dop 2" extension with this one.
Friday, 21 August 2020  | 

The standard 2 extension that is supplied with the sky watcher Dob is a crock of crap. It is too long so it does not give you enough back focus to remove the focusers form the line of sight of the primary.
The Astor Essentials one is perfect at 35mm and the brass compression ring secures nice and tight without marring.

Thanks to FLO for suggesting it. A bonus points is that it takes 2 filters so if you are juggling eyepieces at night you can attach a filter to the adapter, and not have to faf getting it off and on between changing out eyepieces.

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