Beseler Professional 50/3.5
Japanese enlarger lens (early 4-layer multicoated model) made by Komura. Rare earth glass. Identical to Komuranon-E 50/3.5 (only packaging differs).
| Weight | 112 g |
|---|---|
| Dimensions | 50 mm |
| Focal Length (mm) | 50 |
| Max Aperture (f) | 3.5 |
| Min Aperture (f) | 22 |
| Aperture Type | Straight 8 |
| Elements | 6 / 4 |
| Sharp (Near) | 84.3% |
| Sharp (Far) | 82.0% |
| Rear Mount | M39 |
| Front Thread | N/A |
| Flange-Focal Distance (mm) | 42 |
| Extension (mm) | 22 |
| Production | c.1974-1979 |
| Serial Numbers | 4010001, 5070793 |
| Contrast | High |
| Flare | 7 |
| Stars | 7 |
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