I bought this two years ago and have only used it once so it is like new.
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.
