Fast Nikon AI-S 24mm f/2, one of the fastest wide-angles ever for astrophotography and low-light wide-angle work.
The Nikon Nikkor 24mm f/2 AI-S is a fast wide-angle prime providing an unusually bright f/2 aperture at 24mm — rare for any wide-angle lens and one of the fastest 24mm lenses ever produced. The AI-S mount provides the most refined Nikon F-mount coupling.
The f/2 aperture provides exceptional low-light capability and creative depth-of-field control unusual at wide-angle focal lengths. The extra stop over f/2.8 alternatives enables astrophotography, available-light interiors, and shallow-DOF wide-angle compositions.
Build quality is premium Nikon AI-S with all-metal construction and smooth focusing. The fast aperture requires larger optical elements, making the lens slightly larger than the f/2.8 version, but the speed advantage justifies the additional size.
The Nikkor 24mm f/2 AI-S commands premium prices as one of the fastest wide-angle manual focus lenses available. The extra stop is genuinely valuable for astrophotography and low-light work, providing capability that slower alternatives cannot match.