SUMMARY
Professional event shooter Dylan Goldby provides a practical review of the Sigma 17-40mm f/1.8 lens for Fujifilm X, comparing it against Fujifilm's prime lens lineup and the XF 16-55mm f/2.8. Goldby praises the lens's excellent center sharpness, faster f/1.8 aperture ideal for low-light events, and robust build quality, which he rates above the XF 16-55mm f/2.8. However, the review notes tradeoffs in corner sharpness, particularly at wider focal lengths, and occasional autofocus tracking misses. A workflow challenge is also identified: the zoom ring rotates in the opposite direction to Fujifilm's native lenses.
TAKEAWAYS
Sigma 17-40mm f/1.8 offers a faster aperture than Fujifilm's XF 16-55mm f/2.8.
The lens features excellent center sharpness but weaker corner performance at wide angles.
Build quality is rated highly, surpassing Fujifilm's XF 16-55mm f/2.8.
Autofocus tracking can be inconsistent, and the zoom ring direction differs from Fujifilm lenses.