Nikon F 40mm f/2.8

The Nikon 40mm f/2.8 family represented here includes compact 40mm primes and micro/normal variants designed for both DX and full-frame usage depending on variant. A 40mm focal length sits between traditional 35mm and 50mm normals, offering a slightly wider-than-standard perspective with comfortable handling for street, documentary and close-range work. The f/2.8 maximum aperture provides moderate low-light performance and depth-of-field control; AF-S indicates a built-in autofocus motor in many variants. Micro or macro-oriented versions often provide closer focusing for detail or tabletop work. Check the linked reviews and product pages for variant-specific details, including whether a given entry is DX-only or full-frame compatible.