Home :: OPTICAL ACCESSORIES :: Barlows, Reducers & Correctors :: Barlow Lenses :: GSO 3x Barlow (2-Element Barlow with ED glass)

GSO 3x Barlow (2-Element Barlow with ED glass)

GSO 3x Barlow (2-Element Barlow with ED glass)

Manufacturers View products from this brand

in In stock (3)
0.17 kg
Our price:
including VAT 20.00 % ( £6.40 )

A wonderful 3x semi-APO Barlow lens.

It's an excellent quality 2-Element semi-apochromatic Barlow lens.
The aim of Barlow lenses is to prolong the telescope's focal length, so e.g. with a 3x Barlow, when we divide the tripled focal length of a telescope with the focal length of the eyepiece we got three times the magnification obtained. This is a popular amateur complementary tool, because with the help of a Barlow lens we can achieve more diverse magnification range with the same telescope without having to obtain additional eyepieces. On the other hand, since the aperture is usually smaller and the eye relief is shorter for eyepieces with shorter focal length (higher magnification eyepieces), thus these are less comfortable, therefore with a Barlow we can achieve the same magnification but by using a more  comfortable (with a longer focal length) eyepiece. 
Barlows are so good that they are being used even in more expensive wide-angle eyepieces where the Barlow is simply integrated into the construction of the eyepiece.
The Barlow lens is always being used between the telescope lens and the eyepiece. Barlow lenses will fit a 31.7 mm or 50.8 mm eyepiece holder barrel. This particular one will fit a 1.25" eyepiece holder barrel.

Its lens is made of ED-glass.
Fully Multi-Coated
Size: 31.7mm, 1.25

: *
: *
: *
SkyWatcher Cheshire Collimating Eyepiece
HitecAstro EQDIR Adaptor - USB EQ6 Direct Interface
15mm - BST Explorer Starguider ED Eyepiece
18mm - BST Explorer Starguider ED Eyepiece
ZWO ADC Atmospheric Dispersion Corrector
There have been no reviews

Only those who bought this product are allowed to add review
If you've already bought this product, please sign in and add your own review!
The website uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to this policy. Click to learn more.