NEEWER 4 Pcs T2 Extension Tube Kit, 5mm 10mm 15mm 20mm Extension Tube with Double Sided M42x0.75mm Thread, Telescope Accessory for Astrophotography

Designed to be placed in front of the focal plane of your telescope to add length to the original tube, offering extra focuser back travel and the correct image scale for astrophotography Designed to combine extension tubes The set includes extension tubes of 4 lengths: 5mm, 10mm, 15mm, and 20mm Achieve different spacing as required by combining one, two, three or four tubes together With T2 thread (M42x0.75mm) on both interior and exterior sides, the tubes can be easily mounted on a T ring adapter to connect to your camera and make focusing in astrophotography much easier Anodized Metal Build Made of anodized aluminum alloy to stop any reflection, the sturdy extension tubes are built to last and withstand daily wear and tear Lightweight Weighs only 1.94oz/55g The tubes won’t bring extra weight to your telescope when filming