Wm Hume of Edinburgh 128/5.6
Early Petzval brass enlarger lens marked 5”
| Dimensions | 128 mm |
|---|---|
| Focal Length (mm) | 128 |
| Max Aperture (f) | 5.6 |
| Elements | 3 |
| Production | 1910s |
Early Petzval brass enlarger lens marked 5”
| Dimensions | 128 mm |
|---|---|
| Focal Length (mm) | 128 |
| Max Aperture (f) | 5.6 |
| Elements | 3 |
| Production | 1910s |
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