Sell 2 Inch M42 Extension Tube Kit 5/10/15/30Mm M42X0.75 on Both Sides for Astronomy Professional Telescope Astrophotography best price

Brief Description: When you cannot get to the right focal plane for focusing with a camera or eyepiece. This extension tube kit soes this problem. You can use this extender with any camera or eyepiece or with various adapters. The M42 * 0.75 threads on both ends make it extremely versatile. Use this extender for obtaining the correct image scale or for the exact spacing required for a reducer or field flattener. You can reach the extension length required by combining several extenders of different lengths. Features: 1, Fully metal construction and anodizing aluminium process, durable for long time use. 2, M42x0.75 on both sides, eliminates a range of focusing problems 3, The required spacing can be achieved by combining several extenders of differing lengths 4, This extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners 5, The extension tube has a M42 interior thread and a M42 exterior thread for soing spacing problems in astrophotography and eliminates a range of focusing problems. 6, Type: Astronomical M42 * 0.75 thread Extension Tube 7, Male thread: M42 * 0.75mm 8, Female thread: M42 * 0.75mm 9, Color: Black 10, Net Weight: 72.9g / 2.57oz 11, Length: 5mm 10mm 15mm 30mm SIZE: M42 2inch Material: aluminum Package include: 4 * M42 * 0.75 Thread Extension Tube(5mm,10mmm,15mmm,30mm) Only 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.