This telescope extension tube is auxiliary equipment specially designed for photography enthusiasts and professional observers. It can solve the problem of focusing caused by the camera or eyepiece not reaching the correct focal plane. Suitable for various types of cameras, telescopes, eyepiece, and other devices.SpecificationColor: BlackMaterial: Aluminum AlloyDiameter: 44 mm / 1.73 inchHeight: 44 mm / 1.73 inchMale Thread: M42 x 0.75 mmFemale Thread: M42 x 0.75 mmPackage List: 2Pcs x Telescope Extension TubeAdvantageThe main material of the extension tube is aluminum alloy, which is light, easy to carry, and has good corrosion resistance. The internal thread design helps to eliminate stray light and reflected light, thereby presenting clearer and more detailed images.
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