55mm · f/3.5
The Nikon Micro Nikkor 55mm f/3.5 Ai is a vintage manual-focus macro lens praised for exceptional sharpness, especially at infinity, and flat-field performance with minimal distortion. It is built entirely of metal with a smooth, long focus throw. Weaknesses include a slow f/3.5 aperture, 1:2 native magnification requiring extension tubes for 1:1, and short working distance for insects. It suits budget-conscious photographers seeking a sharp normal lens for general use and entry-level macro on manual-focus or adapted mirrorless cameras.