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Sigma 17-40mm f/1.8 DC Art

A 2025 f/1.8 standard zoom for APS-C mirrorless (26-60mm equivalent) with HLA focus, aperture ring, internal zoom and sealing. 525-560g. This is the Canon RF version.

Starting from
£779 new
Available at 2 retailers
Check price at Wex Photo Video
✓ Available at 2 retailers 🔒 No signup needed 📦 UK stock only
RetailerPrice
Wex Photo Video
Wex Photo Video
£779
Check on Wex Photo Video →
Amazon
Amazon
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Prices are synced live from UK retailers. Not every product will be stocked by every retailer; older models may only be available second hand.
Core
Released
2025
Focal Length
17–40mm
Aperture
f/1.8
Compatible Mount
Canon RF
Filter Size
67mm
Dimensions
72.9mm diameter × 115.9mm length
Weight
560g
Weather Sealed
Yes
Optics & Focus
AF Motor
HLA linear motor
Optical IS
None (relies on body IS if available)
Aperture Blades
11
Magnification
0.208x
Min. Focus Distance
0.28m

Select up to 2 cameras to compare against the 17-40mm f/1.8 DC Art. It's always pinned as the baseline.

Select 1–3 cameras to compare

4 cameras compatible with the Canon RF mount.

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EOS R6
£1299
EOS R6 Mark III
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EOS R6 Mark III
£2799
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EOS R5 Mark II
£4299
EOS R3
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EOS R3
£5999
GearScore™ — Suitability by Genre

Base score — computed from verified specs for an enthusiast shooting photo and video. Camera Match adjusts it for your skill level and priorities.

Portrait
6.6
Street
6.8
Travel
6.6
Wedding & Events
7.2
Vlogging & Video
6.3
Filmmaking
6.3
Documentary
7.0
Landscape
7.3
Casual
7.5
Food
5.6
Architecture
6.9
Astrophotography
5.8
Underwater
6.0
✅ Great For
📷
Casual 7.5 Strong on focal length, autofocus and optical quality.
🌄
Landscape 7.3 Strong on optical quality, weather sealing and filter compatibility.
💍
Wedding & Events 7.2 Strong on autofocus, optical quality and weather sealing.
⚠️ Not Ideal For
🍽️
Food 5.6 Held back by close focusing and focal length.
📝 How suitability scores are calculated GearScore™ genre scores are calculated from this camera's verified specifications — autofocus, sensor, weight, weather sealing and more — weighted by what matters for each type of photography. Where a spec sheet misses something (e.g. a manual-focus rangefinder for street), we apply a documented editorial adjustment. Scores are not based on customer reviews. See our full methodology →
Price History — 17-40mm f/1.8 DC Art