Gosky 1.25 -Inch Universal T Adapter / 2X Barlow Lens - Multi-Coated Green Lens - Blackened Inside Tube 2x barlow doubles the power of any eyepiece, offering a total of ten magnifications. In addition the barlow can be used as an imaging adapter for your camera with or without the 2x optical element attached to it thus offering 1x and 2x imaging magnifications. The barlow has a 1.25" drawtube and will accept standard 1.25" accessories including eyepieces and diagonals. The barlow also has a male T-thread on its back that can be used to attach a DSLR camera and other T-thread type accessories. Can works as a camera lens with an appropriate T-Ring, allowing stunning high resolution photos and videos to be captured of the night sky to download, print out, save, send, share, study and admire.