Nikon Ai-s Nikkor 50mm f/1.4 Standard MF Lens Nikon Nikkor Focus Lens #Q9737. Nikon NIKKOR Ai-S 50mm F1.4 + NIKON EM. Nikon Ai-S NIKKOR 50mm F1.4 50/1:1.4 Nikon AIS Nikkor MF lens with Nikon. Nikon AI-S NIKKOR 50mm f1.4（Y25-049）.
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