Nikon Nikkor 35mm f/2 AI-S

Stop it down to f/8, point it at a streetlight, and the seven-bladed iris throws a crisp 14-point sunstar. The 35mm f/2 AI-S renders contrast a touch cool and snappy, holds center sharpness from wide open, and bends a little field curvature into the corners that shows up on a brick wall and disappears on a real scene. The one thing it does not do well is fight the light. Flare and ghosting are the known soft spot of this formula, so it veils and throws ghosts when a bright source sits in or just outside the frame.

That weakness is baked into the glass. The optics are an 8-element, 6-group retrofocus design, which any 35mm on the Nikon F mount has to be to clear the mirror box, and Nikon barely touched the formula from the 1965 Nikkor-O through this AI-S, which ran 1981 to 2005. The coatings improved across those decades but the backlit behavior never fully went away. Wide open at f/2 there is coma on point sources at the edges, and the corners trail until about f/4. By f/5.6 it evens out across the frame, and that is where most people who shoot it live. Out-of-focus highlights stay roundish near center and go lemon-shaped toward the edge, and the falloff from sharp to soft is quick, because 35mm at f/2 simply does not throw much background blur to begin with.

It suits documentary and street work: one small lens, fast enough for an evening, with a focus ring that still turns properly. The 52mm filter thread is shared across half the classic Nikkor line, so an ND or a yellow filter moves from your 50 to this without a second thought. The lens people cross-shop it against is the 35mm f/1.4 AI-S, a stop faster and a lot pricier. Wide open at f/1.4 that one shows coma on point lights and lower contrast, and it really wants stopping to about f/2 before it cleans up, by which point the two are close. The f/2 wins on size, price, and contrast, and gives up nothing on outright sharpness.

The honest limitation is the combination of soft f/2 corners and that field curvature. If you shoot architecture or copy work and want edge-to-edge resolution at full aperture, look elsewhere or stop down to f/8 and live with the slower shutter. For a face at conversational distance it is a non-issue.

One metering note. Wide open it vignettes noticeably in the corners, so meter for the subject, set your zone in Zone Light Meter for where the face actually falls, and let the corners go dark. On a 35mm field that falloff reads as intentional rather than as a mistake. Prices today sit squarely in the affordable-classic bracket, and these keep selling because the rendering holds up and the mechanics still feel like the day the lens was assembled.