Although it doesn’t produce “sharper” images, with its autofocus capabilities, full-frame sensor coverage, ultra-compact size, and a price of only around $90, the Viltrox AF 28mm F4.5 is still a lens worth having in the bag of any mirrorless camera user.
In the 2010s, with the development of mirrorless cameras, more and more new lens brands emerged – a large number coming from Chinese manufacturers. With their optimized production lines, they created countless lens models with various common focal lengths, offering fairly good quality for mirrorless or rangefinder cameras. In particular, they have much more attractive prices than lenses from camera manufacturers themselves or well-known third-party companies like Sigma, Tamron, Zeiss, etc.
However, to minimize costs, most Chinese lens manufacturers produce fixed-focal-length lenses with manual focus and no electronic communication with the camera. Only a few invest in making autofocus (AF) lenses – including Viltrox. This brand’s range of photography lenses consists entirely of fixed lenses, most with AF, with a wide range of focal lengths from ultra-wide 16mm to short telephoto 135mm.
The Viltrox AF 28mm F4.5 lens stands as the only lens design which Viltrox produces for the camera lens industry. The lens existed before its October 2024 release date which introduced it to Sony E-Mount cameras. Viltrox introduced its first Fuji X-Mount version in February 2023 which it followed with a Nikon Z-Mount version between late May and early June. The Viltrox AF 28mm F4.5 lens exists as the only lens which Canon RF mount third-party vendors cannot access because Canon prohibits third-party license agreements for RF mount lenses. The Viltrox AF 28mm F4.5 review from nghenhinvietnam.vn provides complete details about its special features and its positive and negative aspects. The tested lens operated through the Nikon Z-Mount system which it attached to a Nikon Z-f body.
Design:
The Viltrox AF 28mm F4.5 lens exhibits its most significant advantage through its small size which outshines all competing lenses in the market. The Z-mount version of the device displays dimensions of 65.3mm width and 16.8mm thickness while its total weight reaches 80g. The device’s thickness exceeds double the camera body cap measurement with its design remaining within the boundaries of most Nikon Z-mount cameras’ grip area.
The AF 28mm F4.5 lens from Viltrox contains a complete set of important basic functions which the company developed for the product. All lens design requirements which other companies use to create lightweight designs need to be compromised because designers want to build ultrathin products which maintain complete autofocus systems and all lens elements together with electronic body connections. The AF 28mm F4.5 product from Viltrox contains all required features which users need for their work. They designed the system with a lens control lever which users can operate to open and close the lens together with a USB-C port which they hid on the rear side for software updates.
The Viltrox AF 28mm F4.5 lens maintains full-frame sensor coverage while delivering strong construction quality. The lens body and mount components of the product use metal materials which include aluminum alloy. The Viltrox AF 28mm F4.5 lens uses its extremely light and thin design to create specific design limitations. The lens operates at a fixed aperture of F4.5 which restricts its shooting capabilities to that specific setting. The lens body does not have any mechanical adjustment rings which control the lens operation.
VILTROX 28mm f4.5 Pancake Lens for Sony E, Auto Focus 28mm f/4.5 FE Chips-Size Ultra-Thin Full Frame Lens for Sony E Mount:
VILTROX 28mm f4.5 Pancake Lens Fuji x, AF 28mm f4.5 X Mount Lens for Fujifilm, Fixed Aperture F4.5 Fuji x Mount for Fujifilm X-T5 X-H2 X-T50 X-M5 X-T30 II X-Pro3 X-S20 X-E4:
VILTROX 28mm f4.5 Pancake Lens for Sony E, Auto Focus 28mm f/4.5 FE Chips-Size Ultra-Thin Full Frame Lens for Sony E Mount:
VILTROX 28mm f4.5 Pancake Lens Fuji x, AF 28mm f4.5 X Mount Lens for Fujifilm, Fixed Aperture F4.5 Fuji x Mount for Fujifilm X-T5 X-H2 X-T50 X-M5 X-T30 II X-Pro3 X-S20 X-E4:
Viltrox AF 28mm F4.5 Pancake Lens for Sony E-Mount, Auto Focus Chips-Size, Ultra-Thin Prime Wide Angle, Full Frame for Sony E-Mount Camera Lens:
VILTROX 28mm f4.5 Pancake Lens Fuji x, AF 28mm f4.5 X Mount Lenses, Pancake Lens x Mount for X-T5 X-H2 X-T50 X-M5 X-T30 II X-Pro3 X-S20:
VILTROX 28mm f4.5 Pancake Lens Z, AF 28mm f4.5 Z Mount Lens for Nikon, Full Frame Z Mount for Nikon Z7ii Z8 Z5 Zfc Z6ii Z6iii Z50 Zf:
VILTROX AF 28mm F4.5 f/4.5 FE Lens for Sony E Mount, Wide-Angle Full-Frame Auto Focus Lens Compatible with Sony E-Mount Cameras a7C a7SIII a7III a7RIII FX3 ZV-E10 a6700 a6600 a6400:
Focusing Capabilities:
The Viltrox AF 28mm F4.5 is the first lens which the company created with VCM technology which operates through Voice Coil Motor (VCM) (a linear electric motor that uses the principle of interaction between magnetic fields and current in a coil to create linear movement). The lens achieves focus through a silent and smooth movement which enables precise tracking without producing abrupt movements.
The Viltrox AF 28mm F4.5 lens requires a faster focusing mechanism because its tiny design limits Viltrox to use less powerful motors. Even so, it’s not overly difficult to focus. The Viltrox AF 28mm F4.5 needs better video performance because it suffers from focus breathing which alters the video frame according to focus changes.
Image Quality:
The Viltrox AF 28mm F4.5 still maintains its multi-element lens design because of its extremely thin construction. The system contains six elements which include two aspherical lenses that eliminate spherical aberration and two Extra-low Dispersion lenses. The outermost layer also has multi-layer HD nano coating to resist moisture and fingerprints.
The Viltrox AF 28mm F4.5 product fails to deliver complete frame sharpness because its basic design combines with its compact lens structure and budget price. The lens provides good center sharpness while delivering acceptable edge sharpness and exhibiting edge blurring. The design uses a short focal length with a compact lens system which results in vignetting. The system successfully manages distortion.
The lens does not create complete background blurring because it has a short focal length and maintains a fixed aperture at F4.5. The Viltrox AF 28mm F4.5 produces partial background blurring for shoulder-length portraits while it achieves complete separation of subjects from their backgrounds during close-up shots. The lens becomes unfit for actual macro photography because its minimum focusing distance reaches 35mm with Nikon Z mount and 30mm-35mm with other mounts.
Light direction and intensity require special attention during Viltrox AF 28mm F4.5 shooting. The lens captures images that show reduced contrast while creating details which appear to glow when shooting against the light. The light source will cause this effect to decrease or disappear. Strong light conditions show good control of halo effects, although the image remains somewhat washed out. The octagonal aperture produces beautiful star-like light patterns.
The Viltrox AF 28mm F4.5 lens serves better for daily life photography purposes, while it lacks optimal zoom capabilities for detail examination. Street photography enthusiasts benefit from its ultra-compact design and wide-angle focal length because they can operate it like a point-and-shoot camera. An APS-C sensor camera which uses a 28mm focal length creates a field of view that matches 42mm full-frame camera standards.
In summary:
The Viltrox AF 28mm F4.5 lens provides valuable street photography support through its compact dimensions and complete frame coverage and autofocus system, which make it suitable for use with Nikon Z and Sony E and Fujifilm X mount cameras.
The Viltrox product, which retails for $99, becomes an entry-level lens for beginner photographers because it offers affordable pricing and modern features that exceed those of manual focus lenses available at the same price point.
Tech Reviewer & Product Analyst
Định Bia has spent over 10 years testing consumer electronics with a focus on smart technology. He work as a product advisor at Biareview where he helped customers find the right devices for their needs. He personally tests every product featured on this site using a consistent evaluation framework covering quality, durability, and value. All reviews are based on experience, not influenced by the manufacturer.