BST StarGuider 2x Short Barlow Lens
 BST StarGuider 2x Short Barlow LensBST StarGuider 2x Short Barlow Lens 

BST StarGuider 2x Short Barlow Lens

  (2 Reviews)
✓ 2 year warranty


83x in stock shipped 1-2 working days

BST StarGuider Eyepieces & Barlows Special Bundle Prices

Buy 2 or more to save 10%, 4 or more 15% and 7 or more 20%!

Simply add the items to your basket to automatically receive the discount.

About this product

Model:  bst_sg_2x_short_barlow
Part Number:  SP10585

Please note this barlow is occasionally branded 'Astro Essentials'. 

Remarkably high performance-per-£! 

A 2x barlow fits in-between the telescope and eyepiece and doubles the eyepiece magnification. 

This compact 1.25” BST StarGuider 2x barlow with fully multicoated 3-element air-spaced optics features enhanced colour correction, high contrast and excellent light transmission. 

It's compact size makes it suitable for use not only with Newtonians but also telescopes fitted with a diagonal such as refractors and Schmidt-Cassegrains. 

It also has 26mm clear aperture so can be used with long focal length eyepieces with minimal vignetting. 

The sturdy anodised aluminium body uses an anti-marring brass compression ring and thumbscrew to grip the 1.25” eyepiece securely. The smooth-sided nosepiece is threaded to accept 1.25” astronomy filters. 


  • Doubles the magnification of 1.25” astronomy eyepieces. 
  • Provides longer eye-relief and improved edge sharpness at a given magnification. 
  • 3-element design offers superior colour correction compared to two-element Barlows. 
  • Fully multicoated optics for high contrast and maximum light transmission. 
  • 26mm clear aperture reduces vignetting.
  • Compact design suitable for use with Newtonians, refractors and Schmidt-Cassegrains.  
  • CNC-machined anodised aluminium body with anti-marring brass compression-ring. 
  • Nosepiece threaded to accept 1.25” filters. 

Eyepiece Field of View Simulator

Customer reviews

Average Rating (2 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Excellent and Affordable
Friday, 22 January 2021  | 

This is a great little barlow lens, I am quite new to astronomy and got this to go with my 25mm and 10mm eyepieces (which were supplied with my scope) to an amateurs eye I can't see any problems with it, it feels like good, solid build quality and I have had excellent views of the stars and the moon when using it.

Rating (max 5):  
Great barlow
Wednesday, 12 August 2020  | 

Great Barlow at a great price it does not darken image to much , bottom unscrews so can be used with out body I have used it with the ASL224 camera


Please fill in the form below to ask a question.


Related Products
BST StarGuider 60 12mm ED Eyepiece
BST StarGuider 60 15mm ED Eyepiece
BST StarGuider 60 18mm ED Eyepiece
BST StarGuider 60 25mm ED Eyepiece
BST StarGuider 60 3.2mm ED Eyepiece
BST StarGuider 60 5mm ED Eyepiece
BST StarGuider 60 8mm ED Eyepiece

Covid-19: We are open for business as usual. Some deliveries are a little delayed. All deliveries are contact free. Thank-you for choosing FLO 🙂