Opposite ends of the telescope

Here are some more closeups of the primary mirror and its mirror cell. The mirror's pyrex glass and its waffle pattern were major innovations at the time it was designed, as were its counterweighted supports.









At the other end of the telescope are the focal point of the primary mirror and the secondary mirrors which magnify the image and reflect it to the f:16 Cassegrain and f:30 Coudé focal points. The prime focus cage includes adjustable supports which move the secondary mirrors and the prime focus instruments up and down +/- 1.5 inches.