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Helios-77M-4
| Name Manufacturer / Model | Mount Bayonet | Type Category | Year Released | Focal mm | Aperture f/ | Weight g |
|---|---|---|---|---|---|---|
Helios-77M-450mm F/1.8 МС | M42+ PENTAX K | Portrait | — | 50mm | f/1.8 | — |
#DE2910
| Name Manufacturer / Model | Mount Bayonet | Type Category | Year Released | Focal mm | Aperture f/ | Weight g |
|---|---|---|---|---|---|---|
Helios-77M-450mm F/1.8 МС | M42+ PENTAX K | Portrait | — | 50mm | f/1.8 | — |