The Foldable telescope has 5 parts, there are 3 tubes and 2 caps. The caps hold the 2 lenses in place without moving, the caps fit on the ends perfectly and doesn’t detach with force. The telescope isn’t used while you are in space but for seeing far on mars surface. The kind of lenses that go inside of the caps are convex lens that is used to produce a magnified image of an object.

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