Celestron Ultima Barlow Lens @ richardeward.com

Celestron Ultima Barlow Lens
from Celestron

Features:

• 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

Customer Reviews:

• Avg. Customer Rating: 4.5 / 5.0

• celestron ultima 2X barlow
  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,... more info

• Inexpensive but great addition for your viewing pleasure
  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... more info

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