
Sigma
The Sigma 17-40mm F1.8 DC Art is a lightweight APS‑C mirrorless zoom lens offering a constant f/1.8 aperture, internal zoom, and weather‑sealed construction. It delivers prime‑like sharpness across its 17‑40mm range while being over 30% lighter than its 18‑35mm predecessor.
Pros
Current
$919.00
Average
$938.94
Lowest
$919.00
Highest
$949.00
Lower = better sales rank
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Cons
From Expert Reviews
Praised by Experts
Expert Opinion
Professional reviewers and Sigma’s own press praise the 17‑40mm for its unprecedented combination of a constant f/1.8 aperture with a zoom design, noting corner‑to‑corner sharpness that rivals prime lenses, robust weather sealing, and a fast, silent HLA autofocus that minimizes focus breathing—features that make it especially attractive for hybrid stills‑and‑video shooters.
What Users Say
Early consumer buzz, though limited due to the recent launch, is enthusiastic about the lens’s lightweight feel, fast aperture for bokeh, and versatile focal range. Potential concerns revolve around its weight relative to ultra‑compact kit lenses and the absence of an aperture ring on the Sony version.
Common Complaints
Users may find the lens bulkier and heavier than typical kit zooms, and some may miss an aperture ring on the Sony mount version.
How It Compares
vs. Sigma 18-35mm F1.8 DC HSM Art
Advantages
Disadvantages
Choose the 17‑40mm for lighter weight, wider range, and video‑friendly features; stick with the 18‑35mm only if you need the exact legacy focal range.
vs. Sigma 18-50mm F2.8 DC DN
Advantages
Disadvantages
Select the 17‑40mm when aperture speed and image quality are priority; the 18‑50mm is better for those prioritizing size and weight.
vs. Sony E 16-55mm F2.8 G
Advantages
Disadvantages
If native Sony performance and slightly lighter weight are essential, the 16‑55mm G is suitable; otherwise the 17‑40mm wins on aperture speed.
vs. Tamron 17-70mm F2.8
Advantages
Disadvantages
Choose the Sigma when aperture speed is critical; choose Tamron for extended reach.