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Celestron Omni 2x Barlow - 1.25"

Celestron Omni 2x Barlow - 1.25"

by Celestron
SKU CEL-93326
$41.95 - $41.95
$41.95
$41.95 - $41.95
$41.95
Price Match Policy!
  • Instantly doubles the magnification of any 1.25" eyepiece
  • 2-element, fully multi-coated optics for sharp, high-contrast views
  • Maintains the original eyepiece's eye relief for comfortable viewing
  • Lightweight design at only 2.11 oz (60 g)
  • Threaded to accept standard 1.25" astronomy filters
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron Omni 2x Barlow Lens - 1.25"

    The Celestron Omni 2x Barlow Lens instantly doubles the power of any 1.25" eyepiece using a 2-element optical design. This compact accessory weighs just 2.11 oz (60 g) and features fully multi-coated lenses to maximize image brightness and contrast. With its standard 31.75mm barrel, the Omni 2x Barlow provides a simple and effective way to expand your magnification options without buying a full new set of eyepieces.

    Doubling Your Eyepiece Collection with 2x Power

    A Barlow lens is the most efficient way to increase the flexibility of your telescope. By placing the Omni 2x Barlow between your diagonal and eyepiece, you effectively double your available magnifications. A 25mm eyepiece delivers the view of a 12.5mm, and a 10mm eyepiece performs like a 5mm, giving you the higher power needed to resolve fine detail on planets or split tight double stars.

    Fully Multi-Coated 2-Element Optics for High Contrast

    The Omni 2x Barlow uses a 2-element optical design with fully multi-coated lenses to ensure light transmission is high and reflections are low. The lens edges are also blackened to further reduce internal glare, resulting in a cleaner, higher-contrast image. This design preserves the sharpness of your eyepieces while delivering a significant boost in power.

    • High-Transmission Coatings: Fully multi-coated optics ensure that the view remains bright and clear, even when doubling the magnification.
    • Internal Baffling: Blackened lens edges prevent stray light from scattering within the Barlow, which helps to maintain a dark background sky and crisp details.
    • Filter Compatibility: The barrel is threaded to accept standard 1.25" filters, allowing you to use your favorite planetary or nebula filters at high power.

    Maintaining Eye Relief at 2x Magnification

    One of the key advantages of using a Barlow is that it doubles magnification without changing the eye relief of the eyepiece you use it with. High-power eyepieces often have very short eye relief, forcing you to press your eye close to the lens. With the Omni 2x Barlow, you can achieve high-power views while enjoying the comfortable, longer eye relief of your lower-power eyepieces—a significant benefit for all observers, especially those who wear glasses.

  • How will the Omni 2x Barlow affect views of Jupiter with my 8" SCT?

    Using the Omni 2x Barlow with an 8" f/10 Schmidt-Cassegrain is an excellent way to boost magnification for planetary viewing. For example, a 25mm eyepiece that normally provides 81x magnification will jump to 162x with the Barlow. This is an ideal power for resolving Jupiter's main cloud bands, the Great Red Spot, and the Galilean moons as distinct disks.

    Does the Omni 2x Barlow introduce any chromatic aberration?

    The 2-element, fully multi-coated design of the Omni 2x Barlow does a very good job of controlling false color (chromatic aberration). While any additional glass in the optical path has the potential to introduce minor aberrations, this Barlow is designed to provide sharp, color-correct views, especially when paired with quality eyepieces.

    Can I use the Celestron Omni 2x Barlow for astrophotography?

    Yes, the Omni 2x Barlow is a great tool for lunar and planetary imaging. It doubles the effective focal length of your telescope, increasing the image scale on your camera's sensor. This allows you to capture much more detailed close-ups of the Moon's craters or the cloud bands of Saturn and Jupiter.

    Is it better to use the Omni 2x Barlow with a 20mm eyepiece or just buy a 10mm eyepiece?

    Both will give you the same magnification, but the Barlow solution offers a key advantage: eye relief. A 20mm eyepiece typically has much more comfortable eye relief than a 10mm eyepiece. Using the Omni 2x Barlow with the 20mm eyepiece gives you 10mm power while retaining the comfort of the 20mm's longer eye relief.

    How do I attach filters to the Omni 2x Barlow?

    The 1.25" barrel of the Omni 2x Barlow is threaded to accept standard 1.25" filters. You can screw a filter directly onto the bottom of the Barlow barrel before inserting it into your telescope's focuser or diagonal. This allows you to apply the filter's effect to any eyepiece you then place in the Barlow.

    What is the build quality of the Celestron Omni 2x Barlow?

    The Omni 2x Barlow features a sleek, silver aluminum body with a metal thumbscrew to securely hold your eyepiece. At a weight of just 60 g (2.11 oz), it's light enough to avoid causing significant balance issues with your telescope.

  • Barrel Size 31.75mm (1.25")
    Magnification 2x
    Optical Coatings Fully Multi-Coated
    Number of Elements 2
    Accepted Eyepieces 1.25"
    Filter Threads Yes, 1.25"
    Dimensions 74mm x 39.5mm x 39.5mm (2.91" x 1.55" x 1.55")
    Weight 2.11 oz (60 g)
    Environmental Protection Not Waterproof
    • Celestron Omni 2x Barlow Lens

      Omni 2x Barlow Lens - 1.25"

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  • Celestron 2-Year Warranty