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Canon RF 10-20mm f/4L IS STM

The widest rectilinear autofocus zoom in Canon's full-frame line-up — outstanding centre resolution and full L-series build in a lighter, cheaper package than the old EF 11-24mm f/4L it effectively replaces. Needs heavy digital correction for distortion and vignetting at 10mm, but is a favourite for architecture, interiors and landscape work needing extreme wide-angle with autofocus and IS.

Starting from
£2189 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
£2189
Check on Wex Photo Video →
Amazon
Amazon
—
Check on Amazon →
Prices are synced live from UK retailers. Not every product will be stocked by every retailer; older models may only be available second hand.
Value & Depreciation
£2580
Launch price
→
£2189
Today
=
15%
Value drop
Over ~2 years, this camera has cost roughly £195/year to own (buy at launch price, sell today). That's one of the lower cost-per-year cameras in its class.
Core
Released
2024
Lens Type
Zoom
Focal Length
10–20mm
Aperture
f/4
Compatible Mount
Canon RF
Dimensions
83.7mm x 112mm
Weight
570g
Weather Sealed
Yes
Optics & Focus
AF Motor
STM — lead-screw type
Optical IS
5-stop IS (up to 6 stops combined with in-body IS)
Aperture Blades
9
Magnification
0.12x
Min. Focus Distance
0.25m

Select up to 2 cameras to compare against the RF 10-20mm f/4L IS STM. It's always pinned as the baseline.

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4 cameras compatible with the Canon RF mount.

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£1299
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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
6.0
Street
6.1
Travel
6.5
Wedding & Events
6.8
Vlogging & Video
7.5
Filmmaking
6.8
Documentary
6.9
Landscape
7.7
Casual
5.9
Food
5.1
Architecture
7.5
Astrophotography
6.7
Underwater
6.8
✅ Great For
🌄
Landscape 7.7 Strong on focal length, optical quality and weather sealing. Extreme wide-angle coverage with weather sealing for demanding outdoor use.
🏛️
Architecture 7.5 Strong on optical quality, focal length and weather sealing. The widest rectilinear AF zoom Canon makes, ideal for tight interiors.
📱
Vlogging & Video 7.5 Strong on focal length, video handling and optical stabilisation.
⚠️ Not Ideal For
🍽️
Food 5.1 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 — RF 10-20mm f/4L IS STM