Date: April 28-29, 1973
Attendance: Approximately 200
This was a pivotal year for the Riverside Telescope Makers Conference as it moved out from the city lights to the nearby San Jacinto Mountains. The RTMC set up in Camp Isomata, the USC Music and Craft Conference Center in Idyllwild. This was a nice venue as it offered many nice facilities and a large field to set the telescopes up on.
42 telescopes were brought to observe in the dark skies of the San Jacinto Mountains.
Speakers (partial list)
| W. Malcolm Browne, "The History of Mirror Testing" | |
| Jack Borde, "Making Optical Instruments at the Lawrence Radiation Laboratory" | |
| Dr. Frank Melsheimer, "Engineering at Lick Observatory" | |
| John Sanford, "Astrophotography Techniques" | |
| Dr. James Matterson and Tom Johnson, "Schmidt Optics in Photography" |
Merit Awards (partial list)
| Kevin Medlock, "4-1/4" f/26 Unobstructed Schiefspiegler" |