Description

Highlights:
45mm prime lens for a natural, standard perspective
Ultra-fast f/1.2 aperture for creative depth of field control and low-light shooting
STM motor for smooth, fast and quiet autofocus
Compact and lightweight design – Canon’s first RF f/1.2 autofocus lens under 400g
Customisable control ring for easy adjustment of camera settings
9-blade circular aperture for artistic bokeh and highlight rendering

A Compact, Ultra-Fast 45mm Prime Lens
The Canon RF 45mm F1.2 STM is a bright standard prime lens designed for photographers seeking creative depth of field control and strong low-light performance. Featuring a super-fast f/1.2 aperture, this lens offers expressive image results in a compact and lightweight design.
As the first Canon RF f/1.2 autofocus lens weighing less than 400g, it delivers creative flexibility without added bulk. It also represents a competitively priced entry point into fast-aperture photography within Canon’s enthusiast RF lens range.

Ideal for Advanced and Creative Photography
This versatile 45mm prime lens is suitable for a wide range of photography styles:
Portrait Photography
Capture standout portraits with shallow depth of field and smooth, natural background blur.

Street Photography
The 45mm focal length provides a natural perspective, while STM autofocus responds quickly to fleeting moments.

Low Light Photography
The bright f/1.2 aperture allows you to maximise available light. The 9-blade circular aperture design creates elegant starburst effects and smooth bokeh.

Travel Photography
Compact and lightweight, this lens is well suited for travel. Its fast aperture allows you to capture scenes with expressive depth and clarity.

Super-Fast f/1.2 Maximum Aperture
The f/1.2 maximum aperture offers enhanced creative control, enabling beautifully shallow depth of field and strong low-light performance. It allows photographers to explore wide-aperture techniques with precision and flexibility.

Reliable STM Autofocus Performance
Canon’s STM autofocus system delivers smooth, fast and quiet performance. Even when working with shallow depth of field, the lens maintains reliable subject focus, helping you capture moments accurately.

Compact Design for Everyday Use
Weighing less than 400g, the RF 45mm F1.2 STM is Canon’s first RF f/1.2 lens in this weight category. Its constant length and lightweight construction make it balanced for both photography and video use.

Designed for Versatile Shooting
- Separate focus and control rings
- 67mm filter size
- Minimum focusing distance of 45cm
These features allow precise control and close-up detail capture.

Specialist Build Quality
Built for lasting performance, the lens features:
- Metal mount for secure connection to EOS R System cameras
- 9-blade aperture
- Aspheric lens element
- Super Spectra coating
- Focus breathing correction when used with a compatible camera
The Canon RF 45mm F1.2 STM combines a natural 45mm perspective, ultra-fast aperture, compact design, and reliable autofocus in a lightweight RF mount lens designed for expressive, wide-aperture photography

Specifications:
|
Feature |
Description |
|
45mm prime lens |
A standard perspective for natural-looking images |
|
f/1.2 prime lens |
Ultra-fast and bright for creative depth of field control |
|
Compact and lightweight |
Canon’s first RF f/1.2 lens with autofocus weighing less than 400g |
|
STM motor |
Delivers smooth, fast and quiet autofocus |
|
Control ring |
Enjoy easy customisation and control over camera settings |
|
9-blade circular aperture |
For artistic bokeh and highlights |
Optical Specifications
|
Specification |
Details |
|
Image Size |
Full Frame |
|
35mm Film Equivalent Focal Length (mm) |
- |
|
Angle of View (Horizontal, vertical, diagonal) |
49° 35', 29° 50', 51° 20' |
|
Lens Construction (Elements/Groups) |
9/7 |
|
Special Optics |
1x PMo Aspherical |
|
Special Features |
- |
|
Number of Diaphragm Blades |
9 |
|
Minimum Aperture |
16 |
|
Closest Focusing Distance (m) |
0.45 |
|
Maximum Magnification (x) |
0.13 |
|
Control Ring |
Yes |
|
Image Stabilizer OIS |
- |
|
Image Stabilizer IBIS x OIS |
Center 8.0 stops |
|
Corner 7.5 stops |
|
|
AF Actuator |
STM |
|
Coatings |
Super Spectra |
|
Fluorine |
No |
Physical Specifications
|
Specification |
Details |
|
Dust/Moisture Resistance |
No |
|
Exterior Coating |
- |
|
Filter Diameter (mm) |
67 |
|
Max. Diameter x Length (mm) |
78 x 75 |
|
Weight (g) |
346 |




