[32mm Brennweite]

[40mm Brennweite]

[12mm Brennweite]

[2x Barlow]

[15mm Brennweite]

[6mm Brennweite]

[4mm Brennweite]

[9mm Brennweite]

2x barlow - good quality at a fair price
The Omni range offers various magnifications as well as a 2x Barlow lens.

Barlow lenses are practical aids that unjustly enjoy a bad reputation: especially cheap entry-level telescopes are included with inferior quality Barlow lenses, which achieve meaningless high magnifications on these telescopes. The Celestron Omni range consists of comparatively inexpensive but high-quality eyepieces. Even the Barlow lens is not a cheap part, but consists of high-quality, fully multi-coated lenses in a cleanly processed housing. The blackened lens edges prevent stray light and reflections. In addition, each case is anodised twice to prevent reflections - with other manufacturers you will find reflective surfaces instead.

This Barlow lens doubles the focal length of your telescope allowing you to achieve additional magnifications with the existing eyepieces. The optical properties of the eyepieces are retained. Short focal length eyepieces often suffer from a low eye distance, so you have to uncomfortably close to the eyepiece by eye to see an image. With the Omni Barlow, you can also use long-focal lenses for high magnifications without sacrificing observation comfort. All 1.25" eyepieces can be combined with the Omni Barlow. But remember that the opening of your telescope limits the usable maximum magnification. As a rule of thumb, the sensible maximum magnification corresponds to about twice the lens diameter in mm. If you magnify too high, even the best telescope will no longer show clear images.

The dual focal length extension is achieved when the eyepiece is inserted directly into the Barlow lens. If the Barlow is used in front of a zenith mirror, the extension factor is significantly greater, and the image quality may suffer.

For the photography of moon or planets, small video cameras are used today that take many shots in a short time and thus "freeze" the air unrest. The camera is connected to the telescope without an additional eyepiece or lens. In order to achieve the necessary high magnification, good Barlow lenses have proven themselves well.

Just like visual observation, the Barlow is simply inserted between the eyepiece and the telescope, eliminating the need for a zenith prism/mirror. An aperture ratio between f/20 and f/30 is ideal for modern cameras, so the Omni 2x Barlow is particularly suitable for planetary photography with slightly longer focal length lens telescopes or Schmidt-Cassegrains.

• Extension factor: 2x
• Coating: multi-layer coating (multi-layer coating group) on each lens.
  
• Construction: 2 lenses.
• Plug connection: 1.25 inch (both sides).
• Insertion depth: 42 mm.
  
• Weight: 93 g.

The name "Celestron" has stood for high-quality optics at affordable prices for over 50 years. The invention of a new production method allowed company founder Tom Johnson to produce compact telescopes with large aperture and excellent optical quality at low cost in the 1960s. The Schmidt Cassegrain Telescope was born and revolutionized astronomy. Countless other innovations followed, from the first series-produced fully computer-controlled telescope "Compustar" to the hand planetarium "SkyScout" and the fully automatic "SkyProdigy" telescopes. The product range has expanded enormously in recent years, Celestron offers telescopes and accessories as well as binoculars, spotting scopes and microscopes - for beginners as well as for professional users.