The 2x barlow lens is full metal constructed and precisely CNC machined; 1.25 inch Telescope Eyepiece Extension Tube; It provides extra focuser back travel which is often needed for short range terrestrial viewing or astrophotographic applications
Double the power of 1.25 inch telescope eyepiece with the telescope barlow lenses for 1.25 inch eyepieces from Celestron; Orion; Sky Watcher; Meade and most brands of telescope
Barlow element separates from extension tube and threads directly into a 1.25 inch eyepiece for 2x increase in magnification; The barlow lens provide a high power magnification allow you look more closely and detailed at the surface of moon; other planet
High grade Schott optical glass is vat dyed for even color coating; then anti reflection coated for maximum light throughput; each filter has a metal filter cell and is threaded for use with 1.25 inch telescope eyepieces and filter threaded accessories
The filter mount is precision manufactured from metal and is extremely thin to minimise shadowing and diffraction; the threads on both sides of the filter make it also possible to combine different filters