Celestron Ultima Barlow Lens

by Celestron

Product Details

• Product Dimensions: 3.5 x 1.7 x 1.5 inches ; 1 pounds
• Shipping Weight: 1 pounds
• ASIN: B000063Y9J
• Item model number: 93506
• Average Customer Review: 4.7 out of 5 stars  See all reviews (10 customer reviews)
• Amazon Best Sellers Rank:
  • #8 in Camera & Photo > Accessories > Telescope Accessories > Barlow Lenses
• Date first available at Amazon.com: April 1, 2002

Product Description

The Celestron Ultima 2x Barlow Lens is a popular choice among amateur astronomers who want the best performance from their optics. The Ultima Series 1.25" 2x Barlow is an air-spaced, 3-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.

Customer Reviews

Most Helpful Customer Reviews

24 of 24 people found the following review helpful:

5.0 out of 5 stars Inexpensive but great addition for your viewing pleasure, January 17, 2005

By 

Average Joe (Texas) - See all my reviews

Amazon Verified Purchase

This review is from: Celestron Ultima Barlow Lens (Electronics)

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.

9 of 9 people found the following review helpful:

5.0 out of 5 stars True japan lenses, November 13, 2009

By 

Torin Danil (Iasi, Romania) - See all my reviews

Amazon Verified Purchase

This review is from: Celestron Ultima Barlow Lens (Electronics)

It's a bit expensive (now it's even more expensive than when I bought it), but the one I got is made in Japan, which is a very rare this times when almost everything is made in China.

It's a barlow, so for twice magnification prepare to loose some light, but with this one I haven't noticed a thing (so the high quality glass and coatings worth every cent). Jupiter at 400x is magnificent. You can easily see all color bands (red spot wasn't on my side this time).

A barlow is a must for a amateur astronomer. If you have a limited budget, buy few eyepieces : 25,15,6 and a high quality barlow to double the power of each.

11 of 13 people found the following review helpful:

4.0 out of 5 stars celestron ultima 2X barlow, August 28, 2005

By 

stargeezer "Nick" (Dallas) - See all my reviews

Amazon Verified Purchase

This review is from: Celestron Ultima Barlow Lens (Electronics)

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.