Dimensions | 75 mm |
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Focal Length (mm) | |
Max Aperture (f) | |
Min Aperture (f) | |
Elements | |
Rear Mount | |
Serial Numbers |
Aetna 75/3.5
Appears to be an early version of the Japanese-made Coligar with f22 minimum aperture: AKA Perfex, Prinz, Soligor enlarger lenses.
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