Nikon's classic macro standard — the manual-focus Micro-Nikkor-P Auto 55mm f/3.5, flat-field close-up.
The Micro-Nikkor-P Auto 55mm f/3.5 is Nikon's classic macro standard for the F system, introduced in the early 1960s. The P code marks its element count, and the Micro designation is Nikon's term for macro. It was designed for high sharpness and flat-field rendering at close distances, serving copy work, scientific documentation and general macro photography.
This is a manual-focus Nikon F lens with a maximum aperture of f/3.5 and a fixed 55mm focal length, with an automatic diaphragm and an extended helicoid for close focusing. It is a flat-field macro design and reaches higher magnifications with an extension ring. Only the verified focal, aperture and mount are stated; further specifics are omitted to avoid error.
The lens is known for high sharpness and flat-field performance across the frame, which makes it excellent for copy work and flat-subject reproduction as well as three-dimensional macro. It also doubles as a sharp general-purpose short standard for landscapes and documents. The rendering is clean and neutral rather than glowy.
On the used market the 55mm f/3.5 Micro-Nikkor is common and affordable, a well-regarded entry into vintage macro. Inspect the elements for haze and fungus, check coatings for marks, confirm the aperture blades are dry, and test the long focus helicoid for smooth even action. It adapts well to mirrorless, where its close-focus and flat field make it a capable macro and copy lens.