
The Exploratorium has a simple how to on making a telescope using reading glasses – “You’re about to make a telescope. One lens of the reading glasses will serve as the objective lens of the telescope–the lens that gathers light from stars or other objects. The magnifying glass will be the eyepiece. This telescope won’t have a tube–that’s so you can see how an image is formed inside a telescope.” – [via] Link.
4 thoughts on “Build your own telescope”
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This is a camera obscura followed by a magnifier. The interim diffuser severely reduces the efficency of the system.
Building a true telescope from cheap lenses from such places as Surplusshed.com and some PVC is straighforward and quite effective given the large number of high quality lenses available with the demise of film cameras
This little surplus part, combined with a screw mount telephoto should produce an excelent real telescope:
http://www.surplusshed.com/pages/item/t1423.html