How do I make a telescope? Did you know you can build your own telescope? All you need are two lenses and a few common household items. Depending on your crafting experience, you can complete this fun ...
3D printing your own telescope is rewarding and customizable, but it rarely saves money once optics, materials, and time are included.
Binoculars, telescopes and telescopic sights : how they work, how to select them, and how to design and build your own / With drawings and photos. by the author, except as otherwise individually ...