Astronomy * Celestron 2x - 1-1/4'' - Ultima Barlow Lens - Astronomy
Barlow lenses offer an easy, economical way to increase the magnification range of your eyepieces. 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. This 1 1/4 inch Ultima Barlow lens 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, this lens weighs just 5 ounces and is only 2.75 inches long.Coatings: Fully Multi-CoatedType: Barlow
1004-1472 - - AS-CSN 93506