Astromania 1.25" Latest 2X Barlow Lens MultiCoated Metal with M42x0.75 Thread Camera Interface for Telescopes Quality aluminum stock and black anodized body with M42x0.75mm Thread: Work as a T-adapter,connect DSLR/SLR camera to telescope easily via a separate sale T-ring adapter. Barlow element separates from extension tube and threads directly into a 1.25" eyepiece for 2x increase in magnification. The hight-quality barlow lens provide a high-power magnification allow you look more closely and more detailed at the moon's surface and other planet. Double the power of 1.25" telescope eyepiece with the Barlow Lens - for 1.25" eyepieces from Celestron, Orion , Sky-Watcher, Meade and most brands of telescope. The body 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. There may be a problem with some T-adapters that some telescopes will not focus properly without barlow to get infinity focus,the barlow lens will solve the problem. Allows connection of a SLR/DSLR camera or mirrorless camera to a telescope and works as a camera lens to capture images of the night time sky. 1.25 inch / 31.7mm astronomical telescope universal accessories Use: extend the focal length of the front with M42 screw can be connected to the camera bayonet Applies to all 1.25-inch interface telescopes Metal barlowmagnification 2 times magnification. Optical components, the real physical calculation magnification. Use it not only increased the magnification, the imaging will be more clear, than the general magnification to imaging clarity up to 15 times. 2x Barlow lens will increase the magnification of your 1.25 inches Extender telescope twice times With T/T2(M42x0.75mm) male thread for T/T2 connectors Multicoated optics Chromatic corrected 1.25 inch in diameter Two dust caps Diameter: 1.25&#034; (31.7mm) Magnification factor: 2X Lens material: pure optical glass lens Lens coating: multilayer HD broadband green film Sleeve material: Metal Thread interface: M42X0.75 pitch Color: black