Nikon's most affordable true macro lens, compact, sharp, and excellent value on DX bodies.
The AF-S DX Micro Nikkor 40mm f/2.8G is Nikon's entry-level macro lens for the DX format, introduced in 2011. It delivers true 1:1 life-size magnification at a minimum focus distance of 163mm, making close-up photography accessible to D3000- and D5000-series shooters. The 40mm focal length equates to approximately 60mm on a DX body, placing the lens in the standard prime range and giving it a natural dual role as a compact everyday prime when not shooting macro. The G designation indicates no aperture ring, consistent with Nikon's modern AF consumer lens design. It remains one of the smallest and most affordable dedicated macro lenses in the Nikon system.
The optical design contains 9 elements in 7 groups, incorporating Nikon's Close-Range Correction (CRC) system, which adjusts element positions during close focusing to maintain image quality across the full magnification range. The 52mm filter thread is shared with the AF-P 18-55mm and several other DX optics, and at 235g the lens is compact enough to serve as an everyday prime without adding noticeable weight. The AF-S Silent Wave Motor delivers quiet autofocus; the internal focus design keeps the barrel length constant and the front element stationary during focus. Maximum magnification is 1.0x (1:1) at 163mm minimum focus distance. Nikon's Super Integrated Coating reduces flare and ghosting. Seven semi-rounded aperture blades produce smooth out-of-focus rendering. The close working distance at 1:1 can make lighting small subjects difficult.
As a macro lens the 40mm Micro Nikkor produces sharp, detailed close-ups; the 163mm minimum focus distance means the barrel sits physically close to subjects at full magnification, which can cast shadows and restrict lighting angles. As a standard prime the 60mm equivalent provides a natural field of view for street and portrait use, with useful background separation at f/2.8. Autofocus is accurate and quiet in general shooting but can hunt when searching for focus near the minimum focus distance — typical behaviour for macro lenses with long internal focus travel. Manual focus is smooth and precise throughout the range.
On the used market the 40mm Micro Nikkor trades at modest prices, consistently below the longer 60mm f/2.8G Micro. Condition checks should cover the front element for fungus — macro lenses used close to plants or damp surfaces are susceptible — and the AF motor for hunting. As a DX lens it operates in crop mode on FX bodies and does not cover the full-frame image circle for macro use. It pairs well with Nikon's dedicated wireless close-up flash accessories for controlled macro lighting. A practical and affordable choice for DX shooters wanting a dual-purpose macro and standard prime.