Compact Nikon AI standard prime at 50mm f/2, balanced blend of speed and portability at affordable pricing.
The Nikon Nikkor 50mm f/2 AI is a compact standard prime from 1977 offering a balance between the budget f/2.8 and premium f/1.4 options in the Nikon F-mount lineup. The f/2 aperture provides a bright viewfinder and useful depth-of-field control at a size and price between the extremes.
Optically, the 50mm f/2 delivers sharp images with Nikon's clean rendering character. The six-element design is simple but effective, producing excellent results from f/2.8 onwards with good wide-open performance for portraits and low-light work. The AI mount provides meter coupling with all compatible Nikon bodies.
Build quality is compact Nikon AI with all-metal construction and smooth focusing. The lens is noticeably smaller and lighter than the f/1.4, making it a practical everyday companion. The standard 52mm filter thread maintains Nikon system compatibility.
The Nikkor 50mm f/2 AI offers excellent value on the used market as a quality standard prime between the budget and premium options. The f/2 speed provides meaningful advantages over slower alternatives while remaining more compact and affordable than the f/1.4.