Wollensak Oscillo-Raptar 75/1.9
American oscilloscope/projector lens marked 3” 1:0.85x fitted to Tektronix C12. Sometimes sold in shutter. Image circle: 70mm.
| Dimensions | 75 mm |
|---|---|
| Focal Length (mm) | 75 |
| Max Aperture (f) | 1.9 |
| Min Aperture (f) | 1.9 |
| Aperture Type | Fixed |
| Rear Mount | None |
| Front Thread | N/A |
| Serial Numbers | E43674-E43864 |
| Bokeh Character | Centrifugal distortion on 35mm. Strong bubble. |
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