【Design & Features】 This is a Nikon Ai Nikkor 20mm f/4 manual focus lens. It features a compact lens barrel design with a classic metallic appearance. The 20mm ultra wide-angle prime lens is suitable for landscape, architectural, and various wide-angle photography applications. The focus ring has a textured knurled finish that provides smooth and precise operation. This model offers detailed manual focusing control characteristic of classic Nikon lenses. Compatible with Nikon F mount cameras. 【Condition】 Used condition. There are scuffs and minor scratches on the exterior. There is dust and slight dirt inside the lens. Please check the photos for details. 【Details】 Brand: Nikon Model: Ai Nikkor 20mm f/4 Mount: Nikon F Focal Length: 20mm Type: Ultra Wide Angle Focus Type: Manual Maximum Aperture: f/4 Country of Manufacture: Japan 【Included】 Front cap Case 【Shipping】 Shipped under DDU (Delivery Duty Unpaid) terms Shipping costs: paid by the seller Duty & VAT fees: buyer’s responsibility