The Viltrox AF 28mm f4.5 XF is an ultra-compact wide-angle prime for Fujifilm X-mount, providing a 42mm full-frame equivalent field of view in a discreet pancake design. The fixed f4.5 aperture maintains consistent exposure, and a VCM motor delivers quiet, accurate autofocus for street and everyday shooting. Two ED and two aspherical elements support clean contrast, while the integrated sliding lens cap protects the front element and keeps the lens ready for quick use.
Viltrox AF 28mm f4.5 XF Key Features:
- APS-C 28mm f4.5 pancake prime for Fujifilm X
- 42mm full-frame equivalent field of view
- VCM motor provides quick, quiet autofocus
- Two ED and two aspherical elements reduce aberrations
- Integrated sliding cap protects the front element
- 34 cm minimum focus distance for close subjects
- Multilayer nano coating improves flare control
- Water- and oil-resistant front protection
- Ultra-thin 15.25 mm profile, weighing just 60g
- 6-element, 6-group optical design
- Fixed f4.5 aperture for uniform exposure
Compact Design and Everyday Field of View
Mounted on an APS-C body, the lens delivers a 42mm equivalent angle that feels natural for street work and general shooting. Its 15.25 mm depth keeps the camera slim enough to wear across the shoulder without drawing attention, making it straightforward to capture candid frames or work close to subjects without altering your posture.
Autofocus Drive and Focusing Behaviour
The VCM motor responds smoothly and with very little audible movement, which helps when working in quiet environments or recording short clips. Focusing remains steady even as subjects shift towards the minimum distance of 34 cm, allowing quick transitions between wider street scenes and small details on tables or shop fronts.
Optical Elements and Rendering
Two ED elements limit colour fringing around bright edges, while the two aspherical elements maintain sharpness across the frame by controlling curvature. The lens holds contrast well in backlit situations, and the multilayer nano coating reduces flare from overhead lights, making it suitable for work in urban locations where reflective surfaces often affect contrast.
Handling and Integrated Protection
The sliding integrated cap opens with a small lever, which removes the need to pocket or store a separate cap during use. It also shields the front element from dust when the camera hangs at the side. The lightweight build keeps the setup well balanced, allowing one-handed shooting without adding strain over longer sessions.
Durability and Exterior Coating
A water- and oil-resistant coating helps prevent smudges and moisture from settling on the front surface, making it quick to clean during outdoor shooting. Despite its small size, the lens maintains a firm mount connection, and the exterior finish resists marks from regular handling.
What’s in the box?
- 1 × Viltrox AF 28mm f4.5 Lens for Fujifilm X
- 1 × Rear Lens Cap
FAQs
Is the 28mm f4.5 suitable for discreet street shooting?
Yes. Its extremely low profile and integrated cap make the lens almost unnoticeable in use, which helps maintain a low presence when working in crowded or sensitive areas.
How close can the lens focus?
The minimum focus distance is 34 cm, giving a 0.1× magnification. This supports simple detail shots without stepping far from your subject.
Does the fixed f4.5 aperture limit low-light performance?
In moderate indoor or evening light, the fixed aperture works well when paired with Fujifilm’s higher-ISO performance. The lens maintains contrast and AF stability under typical street lighting.
How effective is the nano coating?
The coating reduces flare from light sources positioned just inside the frame and helps keep the front element clearer by resisting water and oil.
Is the lens weather-sealed?
While not fully sealed, the front element offers water- and oil-resistant protection, and the compact design helps keep dust out when the cap is closed.
Back to topProduct Specification
| Angle Of View | 52.07° |
| Autofocus Motor | VCM (Voice Coil Motor) |
| Colour | Black |
| Crop Factor | 1.5× (APS-C - 42mm full-frame equivalent) |
| Enlargement Ratio | 0.1× (1:10) |
| Focal Length ~ Tele [mm] | 28.0 |
| Focal Length ~ Wide [mm] | 28.0 |
| Lens Elements | 6 |
| Lens Groups | 6 |
| Lens Mount | Fujifilm X-Mount |
| Lens Type | Pancake |
| Max Aperture ~ Tele | 4.5 |
| Max Aperture ~ Wide | 4.5 |
| Minimum Focus Distance [m] | 0.34 |
| Mount | Fujifilm X-Mount |
| Sensor Format | APS-C |
| Size | 60.3 mm (diameter) × 15.25 mm (length) |
| Weight [g] | 60.00 |