Pentax 50mm f/1.7 SMC-M Screw Mount
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Nicholas Used Grade: 7/10 (Excellent, small signs of wear, in prefect working condition)
Lens Mount: Pentax K.
Optics: 6 elements in 5 groups. Pentax Super Multi-Coated.
Diaphragm: 6 blades, stops down to f/22. Full, and sometimes half-stop clicks.
Filter Thread: 49mm.
Close Focus: 1.5 feet (0.45m).
Maximum Reproduction Ratio: 1:12.5
Size: 2.5″ diameter x 1.2″ long (63 x 31mm), rated.
Weight: 6.457 oz. (183.05g), measured. 6.52 oz. (185g), rated.