Meade Series 4000 1.25" 2x Short-Focus Barlow LensThe Meade Series 4000 1. 25" 2x Short Focus Barlow Lens is a compact, "shorty" style power boosting lens. It doubles the magnification of any 1. 25" eyepiece, which means that it essentially doubles the number of focal lengths available to you with your existing eyepiece collection! The 2x Short Focus Barlow Lens features a 26mm lens aperture and fully multi coated optics for bright, clear images. Its 1. 25" barrel is conveniently threaded for use of