Cora Zemlock was a long time member of the MAS who donated the money for the mirror for this scope. She later left a large endowment fund that has supported the MAS for
The Zemlock reflector is the largest telescope on site. With a 25 inch mirror, it was built as an f/15, classical Cassegrain telescope with an equatorial fork mount. Located under a 22 foot diameter dome, this scope is computerized with high resolution encoders and motor drives which give it "go to" capability via software.
We call this building the Z Dome. The telescope sits on the second floor and the first floor contains the club’s office, library, and control rooms.
The telescope was reconfigured in 2013 to be an f/3.4 prime focus CCD imager. Additional modifications now allow the telescope to be controlled from the first floor library area. Also, two video cameras have been added, one to see the telescope from the control area and another mounted in the telescope itself looking up so correct dome alignment can be maintained.