Focal Length Extension Tube Kits with 2inch T2 Adapter for Telescope

Fully metal construction and anodizing aluminum process, durable for long time use.Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners.The extension tube has a M48 interior thread and a M48 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problems.The required spacing can be achieved by combining several extenders of differing lengths.Type: Astronomical Telescope M48 thread Extension TubeExtension Tube Height: 7mm 10mm 15mm 20mm 30mmT-Tube is threaded for use with 2 inch Telescope eyepiece and astrophotography filters.Made of machined, anodized aluminumThreaded for Standard 2inch Eyepiece Filters (48mm). Fully Baffled to reduce reflections.Low Profile design, ONLY 10mm.Telescope Interface: 2 InchCamera T-ring Interface: M42x0.75mmSleeve internal thread: M48x0.75mmSleeve external thread: M42x0.75mmcolour: blackMaterial: metalPackage Contents:5 x M48 Extension Tube (7/10/15/20/30mm)1 x 2.0 Inch T-Tube AdapterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.