1.
2. Eliminate redundant light: the design of the feminine wire can eliminate wandering light and reflected light, which makes the image lighter and more.
3. Variable combination: The required spacing can be obtained by combining several extension rings of different lengths, you can use extension rings 1, 2, 3 or 8 depending on the needs.
4. Type: Astronomical telescope M48 Outdoor Tube Filted, The height of the extension tube is 3 mm, 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 20 mm and 30 mm.
5. Aluminum alloy material: all the metal structure and the anodized aluminum process, durable, using this extension tube, can obtain the correct image scale or the precise spacing required by the reducer or the field after.

Spec:
Article type: extension tube kit
Material: aluminum alloy
Gross weight: 107 g / 3.8 oz
Height of the extension tube: about 3 mm / 0.1 inches, approximately 5 mm / 0.2 inch, about 7 mm / 0.3 inches, approximately 10 mm / 0.4 inch, approximately 12 mm / 0.5 inches, approximately 15 mm / 0.6 inch, approximately 20 mm / 0.8 inch, about 30 mm / 1.2 inch
Subject: M48X0.75
Use: for photography of the astronomical telescope

List of packages:
8 x extension