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| Focal Length | 35mm Equivalent Focal Length: 44mm | 
| Lens Construction | 14 elements in 10 groups with 2 ED and 2 aspherical elements | 
| Close Focusing Distance | 0.5m | 
| Aperture | F1.7 | 
| Diaphragm Blades | 11(rounded diaphragm opening) | 
| Filter Size | Φ77mm | 
| Weight | 1.72 lb (780g) | 
| External dimensions : Diameter x Length* (approx.) | Ø94.7mmx99.3mm |