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Canon RF 45mm F1.2 STM
Image: Canon Store

Canon RF 45mm F1.2 STM

Lens for Canon RF · Announced November 2025

Official site on usa.canon.com (opens the maker's site in a new tab)

  • Full frame lens
  • Standard

Typically £431 new, from today's stores and the last 90 days

Best priceNew · in stock

£329

at HDEW Cameras24% below its 30-day average

Used from
£299 at HDEW Cameras9% under new
Used, typically
£380
Compare with RF 50mm F1.2L USM
  • Focal length: 45mm, Full frame lens
  • Max aperture: f/1.2
  • Optical stabilisation: None
  • Autofocus motor: STM
  • Weight: 346 g
  • Weather sealing: No
  • Max magnification: 0.13×, Focuses to 0.45 m

RF 45mm F1.2 STM overview

The Canon RF 45mm F1.2 STM is a 45mm f/1.2 prime for full-frame cameras on Canon RF, announced by Canon in November 2025. 23 cameras we track take it without an adapter.

Going by its spec sheet, it suits low light. It is a weaker pick for rain and dust as well as close-ups.

New, it sells for £329 to £431 at the 2 stores we track in the United Kingdom that have it in stock; used and refurbished copies start at £299.

Worth comparing it with the Canon RF 50mm F1.2L USM, Canon RF 50mm F1.4L VCM and Voigtländer Nokton 40mm F1.2 Aspherical.

Where to buy the RF 45mm F1.2 STM in United Kingdom

  • eBay.co.ukAd

    In stockCheapest live listing today: Open box · uk2014-ag

    £363.70
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  • Amazon.co.ukAd

    Also check on Amazon: new, sold by Amazon and its sellers, the price shows there

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More used Canon RF 45mm F1.2 STM on eBayPaid linkSingle sellers, auctions included: check the listing's condition and returns.

Sorted by price, body only first, cheapest in stock first. Kits are listed apart and never counted as the body price. Some links earn us a commission. The Amazon and eBay rows above are ads; the store rows keep their price order.

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Reviews

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Expert reviews

Each link opens that site's own search for the RF 45mm F1.2 STM.

Member stories · RF 45mm F1.2 STM

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Members' own words, not CamCompare's. All member stories

Things to know

  • 45mm prime, f/1.2.
  • Full frame lens; it also fits the mount's APS-C bodies.
  • Autofocus (STM motor); no optical stabilisation.
  • 346 g; 78 × 75 mm; 67mm filters.
  • Focuses down to 0.45 m, up to 0.13× magnification.
  • Not weather sealed.
  • Used, it typically sells for about £380 in United Kingdom (asking prices over 18 days); today from £299.

Good for

  • Low light (f/1.2)

Not the best for

  • Rain and dust (not weather sealed)
  • Close-ups (0.13× magnification)

From the RF 45mm F1.2 STM's published specs, not from a review.

Price history

Price around the world

Cheapest in Australia: about 17% under the UK price before shipping and import tax.

Prices are in each market's own currency. Under each: ≈ in GBP at today's exchange rate. Body only; where a market lists only kits, its cheapest kit is shown and marked.

Lowest new and used price of the RF 45mm F1.2 STM in each market, with an approximate conversion into GBP
MarketLowest newLowest used/refurb
United States$429≈ £321$381.95≈ £285
United Kingdom(you)£329£299
Europe€389≈ £324€415.19≈ £346
AustraliaCheapestA$530.70≈ £272A$462≈ £237
SingaporeS$599≈ £349—

Each price is in its own currency, as the store charges it. The ≈ figures are approximate, at today's exchange rate (ECB reference rates, 2026-11-06), rounded, and leave out shipping, import duty, GST/VAT and card fees. A camera bought abroad may not carry a local warranty: see grey-market cameras before you buy.

Used: what it should be worth

Should be worth, used

£380

Usually £380 to £431 · 18 days, 35 listings

Cheapest used today

£299

21% under what it usually goes for

RF 45mm F1.2 STM: typical used and lowest new price by dayFrom 17 Oct to 6 Nov, prices between £329 and £536. Latest typical used £397.35. Latest lowest new £329.17 Oct6 Nov£536£329
Typical used Lowest new
MonthCheapestTypicalHighestDays seen
Nov 2026£299£414.18£5366
Oct 2026£380£380£38012

From used and refurbished asking prices at the stores we track, checked every few hours. Confirmed eBay sale prices will be added once eBay grants us access to its sold-listings data.

Videos

Reviews, comparisons and sample footage of the RF 45mm F1.2 STM, on YouTube.

Discussions & forums

What owners say about the RF 45mm F1.2 STM elsewhere, and here.

On CamCompare

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Comments are members' own opinions, not CamCompare's. Votes never change the order of prices.

More options

RF 45mm F1.2 STM specifications

Optics

Focal length
45mm
35mm equivalent
45mm (full frame)
Maximum aperture
f/1.2
Minimum aperture
f/16
Made for
Full frame
Elements / groups
9 / 7
Aperture blades
9
Closest focus
0.45 m
Max magnification
0.13×

Focus & handling

Autofocus
Yes (STM)
Optical stabilisation
No
Weather sealed
No
Internal zoom
—
Aperture ring
No
Teleconverter compatible
No

Size & weight

Weight
346 g
Diameter × length
78 × 75 mm
Filter thread
67 mm

Cameras it fits

All 23 →
Canon EOS R8 Mark II

Canon

EOS R8 Mark II

Full frame · 24.2 MP · 2026

  • IBIS
  • 4K 60p
New from £1,529at 3 stores
Canon EOS R6 V

Canon

EOS R6 V

Full frame · 32.5 MP · 2026

  • IBIS
  • 7K video
New from £1,899Used from £2,039at 2 stores
Canon EOS R6 Mark III

Canon

EOS R6 Mark III

Full frame · 32.5 MP · 2025

  • IBIS
  • 7K video
New from £1,879Used from £1,785at 4 stores
Canon EOS R50 V

Canon

EOS R50 V

APS-C · 24.2 MP · 2025

  • 4K 60p
  • 15 fps
New from £499Used from £459at 3 stores
Canon EOS C80

Canon

EOS C80

Full frame · 19 MP · 2024

  • 6K video
  • 1,545 g
Not priced yet
Canon EOS R1

Canon

EOS R1

Full frame · 24.2 MP · 2024

  • IBIS
  • 6K video
New from £6,399at 1 store