Canon RF 45mm f/1.2 STM Lens

SKU: CAR4512 MFR: 7198C002
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Key Features

  • Large-diameter mount and short back focus, combined with digital distortion correction, result in a compact and reasonably priced f/1.2 large-diameter lens
  • Bokeh, enabled by a large-diameter lens, allows users to create images with a three-dimensional look, isolating subjects from the background
  • An aperture of f/1.2 allows for faster shutter speeds in darker situations
  • Effective placement of one PMo aspheric lens reduces aberrations (a first for Canon in a f/1.2 lens)
  • Gear-type STM technology with magnetic detection system enables a significantly smaller and lighter system
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Reviews about this item

Review Summary

2026-01-23T00:05:22

Rated 5 out of 5

Amazing Lens

Really love the lens I tested it out during a photoshoot at the beach and it's amazing !

ARANZA D.

2026-01-22T05:16:51

Rated 5 out of 5

Great "do anything" lens

Really fantastic lens. Quick and smooth AF. Light weight and easy to use. Very strong vignette before lens correction in LRC or C1. Wish it came with a hood.

JOSHUA W.

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Canon RF 45mm f/1.2 Specifications

Lens
  • Focal length

    45mm

  • Maximum and minimum aperture

    f/1.2 - f/16

  • Lens mount

    Canon RF mount (metal)

  • Compatible cameras

    Canon EOS R-series, including APS-C sensor models

  • Lens Format Coverage

    Full-Frame

  • Minimum focusing distance

    Approx. 1.5' (0.45m)

  • Maximum magnification

    0.13x

  • Field of view, at max. magnification

    10.4 x 6.9" (263 x 175mm)

  • Angle of view (diagonal)

    51 Degree 20'

Optical Design

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  • Lens construction

    9 elements, in 7 groups

  • Special elements

    (one) Aspheric element

  • Lens coating

    SSC (Super Spectra Coating)

  • Filter size (diameter)

    67mm

  • Aperture blades

    9

  • Image Stabilization

    None

AutoFocus

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  • Focus drive system

    STM (Stepping motor; gear type)

  • Full-time Manual focusing

    Available

  • Floating focus system

    None

  • Dual Pixel CMOS AF coverage (HxV)

    Approx. 100% x 100% (Whole Area subject detection); Approx. 90% x 100% (manual AF Area positioning)

Exterior Design

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  • Control Ring

    Available, with click-stops

  • Manual focus ring

    Available

  • AF / MF switch

    Available

  • Iris ring

    None

  • Lens Function button

    None

  • Distance scale

    None (electronic distance scale in viewfinder / LCD screen available, in red Shooting menu, on compatible EOS R-series cameras)

  • Distance limiter switch

    None

  • Dust / weather-resistant construction

    None

  • Tripod collar on lens

    None

Physical

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  • Color

    Black

  • Dimensions (Dia. x L)

    3.1 x 3.0" (78 x 75mm)

  • Weight

    12.2 oz (346g)

  • UPC Code

    013803386868

37 Accessories for Canon RF 45mm f/1.2 STM Lens

  • All Accessories (37)
  • Lens Hoods (1)
  • Filters (7)
  • Bags & Cases (12)
  • Cleaning Accessories (2)
  • Lens Caps (3)
  • Tripods & Monopods (2)
  • Care & Cleaning (1)
  • Rain Covers (1)
  • Extended Warranty (3)
  • Lens Accessories (1)
  • Microphones & Audio (3)
  • Bluetooth Tracker (1)

Designed For Use With:

  • Canon EOS R
  • Canon EOS R5
  • Canon EOS R6
  • Canon EOS R1
  • Canon EOS R3
  • Canon EOS R5 Mark II
  • Canon EOS R6 Mark II
  • Canon EOS R6 Mark III
  • Canon EOS R8
  • Canon EOS RP

Compatible With Restrictions:*

* If using a APS-C Lens on a Full Frame Camera OR Full-Frame Lens on a APS-C Camera then Image sensor will be narrowed down to APS-C size.

  • Canon EOS R10
  • Canon EOS R50
  • Canon EOS R50 V
  • Canon EOS R7

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Canon RF 45mm f/1.2

FEATURED REVIEWS

Amazing Lens

By ARANZA D.

Really love the lens I tested it out during a photoshoot at the beach and it's amazing !

Great "do anything" lens

By JOSHUA W.

Really fantastic lens. Quick and smooth AF. Light weight and easy to use. Very strong vignette before lens correction in LRC or C1. Wish it came with a hood.

Natural perspective, exceptional depth.

This prime lens has the perspective of a human eye, so your photos feel immediately natural. The wide f/1.2 aperture is great for low light, helping you keep shutter speeds fast and ISO low. Because of the smart, compact design and the special aspheric lens, you get sharp images without the lens being heavy or difficult to carry.

Large-diameter mount

The short back focus design works with digital correction to create a remarkably compact f/1.2 large-diameter lens.

Canon RF 45mm F1.2 STM Lens is compact and light

F/1.2 aperture

Isolate your subject with beautiful, three-dimensional bokeh and shoot effectively even in dark environments.

Canon RF 45mm F1.2 STM Lens wide aperture

PMo aspheric lens element

Corrects aberrations for high clarity and sharpness across the frame, a first in a Canon f/1.2 lens.

Gear-type STM technology

A silent, magnetic detection system that makes the focusing mechanism significantly smaller and lighter.

Canon RF 45mm F1.2 STM Lens focus

Focal length close to human vision

Capture natural angles and perspectives that feel instantly relatable and authentic.

Canon RF 45mm F1.2 STM Lens focal length

Dedicated control ring

Quickly customize and adjust various lens functions without taking your eye from the viewfinder.

Canon RF 45mm F1.2 STM Lens control ring

Warranty Information

This product has a limited warranty of 12 months.

Compatibility

Designed for use with: Canon EOS R,Canon EOS R5,Canon EOS R6,Canon EOS R1 and

Key Features

  • Large-diameter mount and short back focus, combined with digital distortion correction, result in a compact and reasonably priced f/1.2 large-diameter lens
  • Bokeh, enabled by a large-diameter lens, allows users to create images with a three-dimensional look, isolating subjects from the background
  • An aperture of f/1.2 allows for faster shutter speeds in darker situations
  • Effective placement of one PMo aspheric lens reduces aberrations (a first for Canon in a f/1.2 lens)
  • Gear-type STM technology with magnetic detection system enables a significantly smaller and lighter system

What's in the box:

  • Canon RF 45mm f/1.2 STM Lens (Black)
  • Canon 1 Year Limited Warranty