Viltrox AF 25 mm F1.7 Air for Fujifilm X is a lightweight fast prime for APS-C cameras. It offers a natural view equivalent to approximately 38 mm on full frame, an F1.7 aperture, quiet STM autofocus with eye and face detection support, and a weight of only 170 g. It is ideal for street, travel, interiors, everyday photography, environmental…
Viltrox AF 25 mm F1.7 Air for Fujifilm X is a lightweight fast prime for APS-C cameras. It offers a natural view equivalent to approximately 38 mm on full frame, an F1.7 aperture, quiet STM autofocus with eye and face detection support, and a weight of only 170 g. It is ideal for street, travel, interiors, everyday photography, environmental portraits and video.

Viltrox AF 25 mm F1.7 Air for Fujifilm X combines a natural angle of view, an F1.7 aperture and fast autofocus in a body weighing only 170 g.

On APS-C, 25 mm corresponds to approximately 38 mm on full frame. It is a versatile choice for street, documentary, interiors, still life and environmental portraits.

Original manufacturer samples demonstrate colour rendering, fine detail and natural perspective on cameras using the same mount system.
Nine aperture blades help create rounded background blur, while the F1.7 aperture makes shooting indoors and in fading light easier.


The lead-screw STM motor focuses quickly and quietly, supports eye and face detection, and offers low focus breathing for video work.
Twelve elements in ten groups include one ED, two HR and two aspherical elements. The manufacturer diagram colour-codes the glass types used to control chromatic aberration, distortion and contrast loss.


The manufacturer MTF chart describes contrast and fine-detail transfer from the centre towards the image edge. Solid and dashed curves represent sagittal and meridional directions at different spatial frequencies.
A metal mount, water-resistant front coating, 52 mm filter thread, EXIF transmission and USB-C firmware updates complete the compact design.

| Manufacturer: | Viltrox |
| Category: | Lenses |
| Filter thread | 52mm |
| Minimum Focusing Distance | 300mm |
| Number of aperture blades | 9 |
| Lens diameter | 64mm |
| Lens Length | 56.4mm |
| Bayonet | X-mount |
| Lens color | Black |
| Thread | 52mm |
| Lens Type | Fixed Glass |
| Lens suitable for | APS-C |
| Aperture (f) | 1.7 |
| Focal length | 25mm |
| Auto focus | Yes |
| Weight | 280g |
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