Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.
Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.
| Dimensions | 25 mm |
|---|---|
| Focal Length (mm) | 25 |
| Max Aperture (f) | 4.5 |
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