Celestron Ultima Barlow Lens

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Product Description:

Barlow lenses offer an easy, economical way to increase the magnification range of your eyepieces, and Celestron carries an assortment of these highly useful lenses. A Barlow lens doubles the magnifying power of your eyepiece by doubling its effective focal length. For example, an 18mm eyepiece used with a 2x Barlow lens would have the magnifying power of a 9mm eyepiece. It's like having two eyepieces in one!If you're looking for an affordable way to achieve high-power viewing of the moon and planets, double stars and even close-up views of terrestrial subjects, a Barlow lens is the answer.Barlow lenses mount into either your telescope's focuser or visual back.The .96" Economy model is a good choice when you want to expand your power ranges at a very economical price. Celestron's premium quality 1¼" achromatic Barlow lenses (#93507) are compact and lightweight. It is under three inches long, weighing in at 4 ounces.The Ultima Series Barlow (2x - 1¼") is an air-spaced, three element apochromatic design with a 27mm clear aperture. This lens features a very high quality, fully multicoated design. Amazingly compact and lightweight, it's just 5 ounces and 2.75" in length.
Product Details
  • Feature:
  • Doubles the magnifying power of your eyepiece by doubling its effective focal length
  • Air-spaced, three-element apochromatic design with a 27mm clear aperture
  • Amazingly compact and lightweight--just 5 ounces and 2.75 inches in length
  • Binding: Electronics
  • Brand: Celestron
  • EAN: 0050234935067
  • Label: Celestron
  • Manufacturer: Celestron
  • MPN: 93506
  • PackageQuantity: 1
  • ProductGroup: Photography
  • ProductTypeName: CONSUMER_ELECTRONICS
  • ProductTypeSubcategory: barlow-lenses
  • Publisher: Celestron
  • SKU: CNBLU
  • Studio: Celestron
  • UPC: 050234935067

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Customer Reviews

Works well with my modest 90mm scope2009-04-29
I'm using this with my inexpensive Meade 90AD-AZ, and it works well. It effectively doubles the power of my eyepieces without any serious loss of optical quality, as long as I don't try to push my scope past its magnification limits. For the price, it performs very well.
Bharesh Dedhia2009-01-27
Works well with the Celetron 8-24mm zoom lens on my 80ED APO Refractor

Bharesh Dedhia
celestron ultima 2X barlow2005-08-29
The application for this barlow on my 8i/GPS SCT/XLT was to gain higher magnification options from longer focal length and eye relief eyepieces (ELux and Xcel 25-18-15mm)and stay in modest price ranges for everything. COMMON TESTS with the barlow vs. short focal length eyepieces to 8mm was most favorable: a) using both common and wide angle FOV eyepieces and b)testing with and without eye glasses while c) viewing Polaris double, Jupiter & moons and the Moon. Seeing conditions were poor (Dallas, summer, early evening sky with a lot of Moonlight.) Never the less I am pleased with both the Celestron Ultima 2X barlow and the strategy and therefore I "recommended". Shipping was prompt - much better than prior experiences with amazon.com - improvement so noted.
Inexpensive but great addition for your viewing pleasure2005-01-18
This particular Barlow, along with the Orion Shorty, is highly recommended on several of the astronomy forums on the internet. I got this one instead of the Orion simply because Amazon was offering it at about $52 at the time.

I've found that I enjoy using the Barlow when viewing planets and a few DSO's. It provides an economical way to virtually increase the number of eyepieces in your collection. It does introduce a little light loss with my eyepieces (maybe this is normal with all eyepieces), but it is not troublesome.

I certainly recommend this Barlow for those of you who want to cheaply expand your eyepiece collection.

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