Wollensak 3″ (75mm) f1.9 Oscillo-Raptar 1:0.9X
| Company | Wollensak |
| Country | United States |
| Year of manufacture | 1960s |
| Type | Oscilloscope lens |
| Focal length | 75mm |
| Aperture | f/1.9 |
| Company | Wollensak |
| Country | United States |
| Year of manufacture | 1960s |
| Type | Oscilloscope lens |
| Focal length | 75mm |
| Aperture | f/1.9 |
