For five times the Clarks made the objectives for the largest refracting telescopes in the world. ... Making a refractor telescope PDF (2.31Mb) Naturally, then, I decided to build a refracting telescope for the creative project in a class I'm taking called "Changing Views of the Universe". Spread tripod legs and attach accessory tray. It was the great Italian scientist Galileo Galilei who refractor telescope is a tube that contains 2 lenses: one at the front end with little magnification, which is called the ‘objective lens’, and another at the bottom end that is closest to your eye, called the ‘eyepiece’. I'm actually pr… How to Build a Refracting Telescope: As of late, I've become very interested in space, stars, galaxies, and the universe. Making a refractory telescope Illustration from Emblemata of Zinne-werck, Johan de Brune, 1624. • Refractor Telescope Assembly • Equatorial Mount • Red Dot Wide Field Finderscope • 20mm, 12mm, 4mm Eyepieces • Erect Image Eyepiece (For Land Use) • Barlow Lens PARTS LIST QUICK ASSEMBLY DIAGRAM 5. Bassett Clark and Alvan Graham Clark were the main makers of large refracting telescopes in the late nineteenth century. 78-9500 60mm RefRactor Step 2 Step 1 1. ing telescope (usually called a refractor) does this with a carefully made lens system. They used it at sea to check the flags of distant boats approaching and to decide if they were friends or enemies. If the surfaces of the lenses have the proper shape, the light will come to a focus. The telescope was discovered by the Dutch, a nation of sailors and sea explorers.