[TOP MINT] Nikon AI-S AIS Nikkor 20mm f/3.5 Ultra Wide MF Lens Nikon F Japan

Optics: Perfection. The glass is crystal clear. I have inspected this unit under intense light to ensure there is NO fungus, NO haze, and NO scratches. The focus ring provides a silky smooth tactile experience, and the aperture is responsive and oil-free.