Matsopoulos N. Theofanis
Location of Photo:
Penteli Observatory, Greece
Date/Time of photo:
Camera:Canon EOS 40D Lens:Canon Canon EF 15mm f/2.8 at f/5.6 Exp:aprox 3H
The Newall telescope is one of the bigges refractors of the world. It was made by T. Cooke and Sons in 1869.It was named after Robert Stirling Newall.The lens is 25 inches in diameter. Its tube is approximately 9 meters long. The whole construct weighs about 9 tons. The telescope belongs at the National Observatory of Athens.