Nikon's classic compact macro — Micro-Nikkor 55mm f/2.5, a versatile macro and normal prime.
The Nikon Micro-Nikkor 55mm f/2.5 is one of Nikon's classic compact macro primes — providing 1:2 half-macro magnification at 55mm in the most compact possible macro Nikkor. Also excellent as a general 55mm prime.
Optically very good — sharp at macro distances and infinity. The 55mm provides a near-normal perspective with macro close-focus. 1:2 magnification without extension — reaches 1:1 with PK-13 extension tube. Multiple versions exist.
Nikon F mount with 52mm filter thread. Very compact — the smallest Nikkor macro. 1:2 native magnification. Various versions from pre-AI through AI-S. Check coupling type on used copies.
Available used very cheaply. The 55mm f/2.8 Micro (ID 2020) is the AI-S update. A versatile compact lens that doubles as both macro and normal prime. Check for specific version — pre-AI, AI, or AI-S.