Boyer Topaz 50/3.5
Triplet enlarger lens. Not the same as the pre-1939 versions with the same name.
| Dimensions | 50 mm |
|---|---|
| Focal Length (mm) | 50 |
| Max Aperture (f) | 3.5 |
| Min Aperture (f) | 16 |
| Aperture Type | Circular |
| Elements | 3 |
| Production | 1970s |
| Serial Numbers | 781113 |
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