| Results | ||
| Speaker | Title | Date |
| Keene, George T. | Astrophotography In Color | 1967 |
| Keene, George T. | Simulated Night Phtography Using Color Reversal Films | 1961 |
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| Results | ||
| Speaker | Title | Date |
| Keene, George T. | Astrophotography In Color | 1967 |
| Keene, George T. | Simulated Night Phtography Using Color Reversal Films | 1961 |