Nikon Nikkor 28mm f/2 AI-S

A dim church interior, no flash allowed, and you want context around the subject instead of a tight head. That is what this lens is for. A 35mm f/2 sees too narrow and a 24mm f/2.8 makes you choose between a slow shutter and a deep crop. The 28 f/2 splits the difference and hands you a full stop the cheaper 28mm f/2.8 cannot. For decades this was the press and reportage wide that lived on a working Nikon body next to a 35 and an 85.

Optically it is a retrofocus design built to clear the F-mount mirror, and it behaves like one. Wide open at f/2 the center is genuinely sharp, but the corners go soft and there is real coma. Point sources near the frame edge, streetlamps, a candle, smear into little wings. Stars come out as seagulls. Stop down to f/5.6 and most of that cleans up; by f/8 it is even and crisp across the frame. The rendering wide open has a glow that flatters skin and reads as character rather than as a defect, which is exactly why people forgave it on the street.

Bokeh from a wide-angle at f/2 is never the headline, but the out-of-focus area here is smooth and a little nervous near edges rather than buttery. Contrast is moderate by modern standards, lower than the later AF-D and far below any Nikkor with nano coating. Flare resistance is the honest weakness. Shoot into a low sun or a bright bulb and you will catch veiling haze and the occasional aperture-shaped ghost. The 52mm front and the shallow built-in hood help, but a proper shade earns its keep.

The build is the reason people still hunt these down. All metal, a focus ring with smooth even damping, and the AI-S aperture coupling that talks to everything from an FM2 to a modern digital body in stop-down or aperture-priority. It is a manual-focus lens through and through, no chip, no AF, so you are metering and racking by hand. That suits the photographer who wants to slow down. Used prices sit above the f/2.8 version and below the cult-status fast Nikkors, and the rivals on the table are usually the older 28 f/2 K (essentially the same optical formula), the Canon FD 28 f/2, and Zeiss ZF glass for people willing to pay double.

One note for low light. At f/2 you can meter and focus wide open, which is the whole point of buying the fast version, so let your Zone Light Meter reading off the center carry the frame. Expect roughly a stop of corner illumination falloff at f/2 that largely clears by about f/5.6. If a corner subject genuinely matters, stop down for it rather than trying to dial in exposure for lens vignetting. The 52mm thread also makes filters cheap, so a screw-on ND or polarizer for daylight work costs almost nothing to assemble.