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
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.
Product 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 |