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
Please be assured that these focusing masks will work excellently for both reflectors and refractors with whatever focal length; All you need to do is to measure your telescope tube size and choose the right size of the mask
They are made from 2 mm thick laser cut abs; Securing screws are capped with soft plastic so they do not damage your telescope; These Bahtinov masks are adjustable to fit a wide range of optical tubes; They have adjustment latitude of about 85 to 120 mm