Viltrox's compact APS-C normal prime — 37.5mm equiv at f/1.7 with fast AF for Fujifilm X-mount.
The Viltrox AF 25mm f/1.7 is a compact autofocus normal prime for APS-C mirrorless cameras, providing approximately 37.5mm equivalent on Fujifilm X-mount. It targets casual photographers and video creators wanting a fast, affordable everyday prime.
Optically good for the price — sharp from f/2.5 with pleasant rendering at f/1.7. Stepping motor AF is quiet and reasonably fast. Eye-detect AF works with compatible bodies. The f/1.7 aperture provides good low-light capability and subject separation for APS-C.
Fujifilm X mount with 52mm filter thread. Weighs approximately 180g — compact. No weather sealing. Minimum focus distance 25cm. USB-C port for firmware updates. 9 aperture blades. Also available for Sony E, Nikon Z, and other mounts.
Available used very cheaply. Competes with the Fuji XF 23mm f/2 R WR and XF 27mm f/2.8 WR — both weather-sealed but more expensive. The Viltrox offers faster aperture at lower cost. Check for firmware updates — Viltrox improves AF via USB-C regularly.