Nikon Nikkor 24mm f/2.8 AIS

Small enough to vanish in your palm, all metal, with a focus ring damped the way nobody bothers to engineer anymore. This is the wide a generation of photojournalists kept on the camera when the 35mm was too tight and the 28mm felt too ordinary. You can throw it in a coat pocket for a week of shooting and it comes back fine. That is most of the pitch right there.

The optics are a retrofocus design, which any 24mm on an SLR has to be to clear the mirror box. What that buys you here is a close-distance correction system. This lens focuses to 0.3 meters with a floating element that keeps the corners from falling apart up close, and that is the trick that makes it more useful than its spec sheet suggests. Wide open at f/2.8 the center is already crisp while the corners stay soft, with some visible field curvature. Stop to f/5.6 and it tightens into the sharp, contrasty, slightly cool rendering that Nikkor glass of this era is known for. Distortion is mild for the focal length, barrel and well controlled.

Where it shows its age is flare. Put a streetlight or the sun near the frame edge and you get veiling haze and the odd green ghost, the way a vintage wide-angle design does before modern multicoating got flare under control. The 52mm filter thread is the saving grace for fighting that, and it shares that thread with the 50mm f/1.4 and the 105mm, so one set of filters covers a working kit. Hood it always.

Who actually reaches for it: documentary shooters, environmental portraitists who want the subject in a place rather than floating in bokeh, and landscape people who like a wide that does not bulge faces at the edges. It is not a bokeh lens and was never meant to be. At f/2.8 the out-of-focus rendering is honest and unremarkable. Architecture folks who wanted a Nikon shift wide in this era had no 24mm option at all; they used the 28mm or 35mm PC lenses instead, since the 24mm PC-E f/3.5D arrived in 2008, long after this lens's heyday and as a modern electronic tilt-shift rather than a period peer. The f/2 AIS sibling exists for people who need the extra stop and the brighter finder, though it costs more and flares worse.

Today this is the value pick in the manual-focus wide bracket. People cross-shop it against the Canon FD 24mm f/2.8 and the various 28mm primes, and it usually wins on close focus and on price per unit of sharpness. It mounts on everything from an F2 to a modern Df, and on a film body with no electronics it just works.

One metering note. Because it focuses so close, and you will use that, remember that at 0.3 meters you are pushing into the range where extension starts to cost light. For a 24mm the bellows factor stays small, well under a stop, but if you are running a handheld meter and chasing a tight foreground at minimum distance, let Zone Light Meter fold the close-focus compensation in rather than guessing. The rest of the time, meter it open and forget it.