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Canon RF 45mm f/1.2 STM

A small, affordable way into f/1.2 — at 346g the RF 45mm F1.2 STM is far lighter and cheaper than Canon's L-series fast primes, trading weather sealing and premium build for size and price. A practical everyday portrait and low-light prime for photographers who want a wide-aperture look without the weight or cost of L-glass.

Starting from
£479 new
Available at 2 retailers
Check price at Clifton Cameras
✓ Available at 2 retailers 🔒 No signup needed 📦 UK stock only
RetailerPrice
Clifton Cameras
Clifton Cameras
£479
Check on Clifton Cameras →
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.
Value & Depreciation
£480
Launch price
→
£479
Today
=
0%
Value drop
Over ~1 year, this camera has cost roughly £1/year to own (buy at launch price, sell today). That's one of the lower cost-per-year cameras in its class.
Core
Released
2025
Lens Type
Prime
Focal Length
45mm
Aperture
f/1.2
Compatible Mount
Canon RF
Filter Size
67mm
Dimensions
78.0mm diameter × 75.0mm length
Weight
346g
Weather Sealed
No
Optics & Focus
AF Motor
STM motor with a customisable control ring
Optical IS
None (relies on body IS if available)
Aperture Blades
9
Magnification
0.13x
Min. Focus Distance
0.45m

Select up to 2 cameras to compare against the RF 45mm f/1.2 STM. It's always pinned as the baseline.

Select 1–3 cameras to compare

4 cameras compatible with the Canon RF mount.

EOS R6
Canon
EOS R6
£1299
EOS R6 Mark III
Canon
EOS R6 Mark III
£2799
EOS R5 Mark II
Canon
EOS R5 Mark II
£4299
EOS R3
Canon
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
6.1
Street
7.2
Travel
5.2
Wedding & Events
5.6
Filmmaking
5.3
Documentary
5.3
Landscape
5.0
Casual
6.7
Food
4.7
Architecture
4.9
Astrophotography
5.8
Underwater
4.3
✅ Great For
🌆
Street 7.2 Strong on portability, focal length and maximum aperture.
⚠️ Not Ideal For
🤿
Underwater 4.3 Held back by focal length and close focusing.
🍽️
Food 4.7 Held back by close focusing and focal length.
🏛️
Architecture 4.9 Held back by focal length and optical stabilisation.
📝 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 45mm f/1.2 STM