Double it better!Celestron's X-Cel ED, 1.25-inch, 2X Barlow lens is high on everyone's list of absolute must-have accessories. The ultimate in quality, it features top-quality, ED optical glass for sharper, brighter images, and it'll make quite a difference in your telescope's performance. .
This ED Barlow lens doubles the magnifying power of any eyepiece. For example, an 18mm eyepiece used with a 2X Barlow lens would have the magnifying power of a 9mm eyepiece. And on a telescope with, say, 1,500mm focal length, magnification would jump from 83X without the Barlow to 166X with it. And this in a compact package that weighs just 5 ounces and is 2.75 inches long.
It's like having two top-quality eyepieces in one! No wonder folks like them: they can instantly double their eyepiece collection.