A Barlow lens is the astronomy accessory that keeps on giving! Insert it between your eyepiece and your telescope to get double the magnification instantly. Lets say you have two eyepieces in your accessory case, a 10 mm and a 25 mm. Add a Celestron Omni 2X Barlow Lens to the mix, and now you have four magnifications to choose from. Combining this lens with the 25 mm provides double the magnification, or the equivalent of a 12.5 mm eyepiece, while the 10 mm gives you the power of a 5 mm eyepiece.
Eye relief is the distance your eye has to be from the first lens in the eyepiece in order to see the full field of view. When you use a Barlow lens with an eyepiece, you get double the magnification, but the eye relief is not affected. This is a good thing, because normally the shorter the focal length of the eyepiece, the less eye relief you have. In other words, a standard 10mm eyepiece, as a general rule, will have better eye relief than a 5mm eyepiece. Bonus!
The Celestron Omni 2x Barlow comes in a sleek, silver package. The two-element optics are fully multi-coated, and the edges of the lenses are blackened to cut down on internal reflections. The 1.25 barrel will fit in standard 1.25 focusers and diagonals, and the Barlow will accept 1.25 eyepieces. A metal thumbscrew locks the eyepiece firmly in place.
MAGNIFICATION: 2 x
SIZE: 1.25 inch
Geat Barlow at afordable price For the price it is a great Barlow. I would say it is perfect for beginners. (04/03/2019) Chris Ashton - Hemel Hempstead
Great Quality, Great Results I've only just joined the world of Astronomy and was looking for a Barlow lens I felt I could trust. Having purchased a Celestron 4se and being impressed with their eyepieces, I immediately looked into their Barlow lens and I was not disappointed. Great build quality and beautiful image! (18/01/2019) Zander - Birmingham
Great bit of kit Super fast delivery, always a pleasure ordering from Harrison Telescopes. For the price this Barlow lens is well worth it, good quality and just what I needed to get a closer view of the planets and deep sky objects. (11/08/2018) Ted - Surrey
Excellent service. I have just purchased my first telescope at the age of 56! After wanting one since a child of around 7 or 8 years old... I ordered the Barlow lens from Harrison - it's fantastic! Really pleased with it. The service and delivery were both very good and I would recommend dealing with this company. (13/07/2018) Marie - Newark, Notts
Celestron Omni 2x Barlow Lens Purchased this Barlow Lens to replace the one that came bundled with my telescope. This is a much better piece of kit being metal bodied, better optics and a matt black interior to improve contrast. The service from Harrison Telescopes was first class and a really good price too. (17/01/2018) Philip Watts - Bristol
Best price and super quick delivery My new telescope came without a Barlow eyepiece, so immediately ordered it and it came next day, super price and service, thank you. (08/12/2017) Barry Weston - Cornwall
great product for price, great service. (27/05/2017) ray - kent
EXCELLENT VALUE Found this on Harrisons website at £24.95 - ordered it xmas week arrived new years eve. Great price and service. (03/01/2016) JAMES T - WEMBLEY
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