Viltrox has introduced a 40mm f/2.5 lens for full-frame Nikon Z-mount cameras that is extremely inexpensive, compact, and promises precise and accurate autofocus performance.

“It can not only include rich environmental elements, but also delicately highlight the subject, and can easily handle various themes such as humanistic streets, still life photography, and environmental portraits,” according to Viltrox.

The Viltrox 40mm f/2.5 has ten elements divided into six groups, including one extra-low dispersion lens, three high refractive index optics, and one aspherical lens. A seven-bladed diaphragm allows it to operate at apertures ranging from f/2.5 to f/16. The front filter thread measures 52mm.

The lens weighs only 180 grams and measures 68mm by 55.9mm, making it surprisingly compact and lightweight for a relatively fast prime lens that Viltrox claims is similar to the human eye’s perspective.

The 40mm f/2.5 lens has an electronic connection to the attached camera, which allows for full transmission of information such as EXIF data and autofocus. According to Viltrox, the lens’s STM-style motor is capable of offering fast and accurate autofocus performance—enough to allow eye AF on Nikon’s latest Z-mount cameras. Furthermore, Viltrox claims that the lens is advanced enough to offer reliable video shooting, both in terms of autofocus and compatibility with Nikon cameras with in-body image stabilization. Viltrox further claims the lens has low distortion and relatively minor focus breathing.

The lens comes with a lotus-shaped lens hood and a USB-C interface on the base, which, according to Viltrox, may be used to change the lens’s firmware if necessary.

Here are some sample photographs: