Voigtlander NOKTON 23mm f/1.2 Aspherical

The Voigtlander NOKTON 23mm f/1.2 Aspherical is a wide-angle prime for Fujifilm X APS-C cameras, introduced in 2022. Its 23mm framing suits street photography, crowded interiors and documentary work where the surroundings matter as much as the subject.

The bright f/1.2 aperture is the main draw, and the trade-off is manual focus: every frame needs a turn of the focusing ring. That suits a deliberate, unhurried way of working, and it makes fleeting moments harder to catch. If you photograph people, food and interiors at your own pace, the fit is strong. Run-and-gun action shooters should look elsewhere.

At 7.7 oz (219 g) and 1.72 in (43.8 mm) long, this lens adds little weight to an APS-C body. The 2.33 in (59.3 mm) diameter keeps a slim profile, and filters screw directly into the 46mm thread. The physical specification scores 86 of 100.

The 23mm focal length frames a moderately wide view on APS-C. That suits street scenes, small rooms and environmental portraits, where the setting tells part of the story. In a busy market or around a dinner table, 23mm keeps both the people and the room in the frame. You zoom with your feet, since this is a prime.

The f/1.2 maximum aperture is what makes dim-light shooting possible. It lets you keep working in candlelit restaurants, evening streets and lamp-lit rooms while holding ISO down. The optics specification scores 77 of 100.

Background blur is the second reward. A 23mm design blurs backgrounds most at close range, and this lens focuses to 0.6 ft (18 cm). Near a plate of food or a window display, f/1.2 separates the subject clearly. Twelve aperture blades keep the opening round when you stop down, smoothing out-of-focus highlights.

Focus is manual, and at f/1.2 with a near subject, depth of field is very shallow. Place focus with care on the eye or detail that matters most. Stopping down a little brings more of the scene into focus when the moment allows.

There is no image stabilization in the lens. For handheld video or very slow shutter speeds, you will need a steady hold or a support. At 23mm, camera shake shows up far less than on long lenses. The omission is therefore easier to live with than it would be on a telephoto.

Weather sealing is also absent. The lens suits fair-weather street work and dry interiors, and it should be kept out of rain and blowing dust. A quick wipe after damp conditions keeps it in good order.

A fluorine coating is absent too, so the front glass needs ordinary cleaning care.

Inside are 10 elements in 6 groups. The set includes one aspherical element, itself a bi-aspherical design, and two elements of low-dispersion glass.

Aspherical surfaces help correct distortion, where straight edges would otherwise appear curved, a useful trait for interiors and architecture at 23mm. Low-dispersion glass helps reduce chromatic aberration, the coloured fringes that can appear along high-contrast edges such as a window frame against a bright sky.