Gradomatic Anastigmat 50/3.5
Japanese-made enlarger lens. Black body with red-dot aperture mark; silver nose and mount. Probably AKA Aetna, Perfex, Prinz, Soligor, Ampex, etc.
| Dimensions | 50 mm |
|---|---|
| Focal Length (mm) | 50 |
| Max Aperture (f) | 3.5 |
| Min Aperture (f) | 16 |
| Aperture Type | Curved 5 |
| Elements | 3 |
| Rear Mount | M39 |
| Front Thread | N/A |
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