Canon RF 45mm F1.2 STM Lens

Canon RF 45mm F1.2 STM Lens

Fast aperture. High impact. Pure creative freedom.

The Canon RF 45mm F1.2 STM is a groundbreaking fast-aperture prime lens that combines exceptional optical performance, compact design, and versatile everyday usability. Delivering a natural perspective and exquisite background blur, it’s the first Canon RF f/1.2 autofocus lens weighing under 400g, making it the perfect partner for photographers and filmmakers who want professional-grade depth of field and low-light performance in a portable, affordable package.

Exceptional Speed and Creative Control

With its ultra-bright f/1.2 maximum aperture, the RF 45mm F1.2 STM gives you complete control over depth of field, allowing you to isolate subjects beautifully and achieve stunning bokeh. Its wide aperture also ensures outstanding low-light capability, letting you shoot handheld in dim environments without compromising image quality.

Lightweight, Compact, and Perfectly Balanced

Weighing less than 400g, this lens offers an ideal balance between performance and portability. The 45mm focal length provides a natural field of view, perfect for portraits, street photography, lifestyle work, and video. Its constant length and smooth focusing make it equally suited to handheld or gimbal use.

Precision Autofocus with STM Technology

The STM (Stepping Motor) autofocus system ensures fast, accurate, and near-silent focusing, even when working with a shallow depth of field. It’s ideal for capturing candid stills or recording video where smooth focus transitions are key.

Designed for Creative Flexibility

With a minimum focusing distance of just 45 cm, a 67 mm filter thread, and separate focus and control rings, this lens invites precision and experimentation. Adjust ISO, aperture, or exposure compensation via the customisable control ring for seamless operation.

Durable, High-Quality Construction

Built to perform, the RF 45mm F1.2 STM features a metal mount, 9-blade circular aperture, and an aspheric lens element with Super Spectra Coating for sharp, contrast-rich images. It also supports focus breathing correction when used with compatible Canon EOS R cameras, delivering stable framing during video capture.

Key Features

• 45 mm Standard Prime Lens – natural perspective for lifelike results

• Ultra-fast f/1.2 Aperture – creative depth of field and low-light performance

• STM Autofocus Motor – smooth, fast, and quiet operation

• Compact & Lightweight Design – under 400 g for effortless portability

• 9-Blade Circular Aperture – produces artistic, rounded bokeh

• Customisable Control Ring – intuitive access to camera settings

• Durable Metal Mount & Premium Optics – reliable everyday performance

Technical Highlights

• Focal Length: 45 mm

• Maximum Aperture: f/1.2

• Minimum Focusing Distance: 0.45 m

• Filter Diameter: 67 mm

• Aperture Blades: 9 (circular)

• Weight: Under 400 g

• Autofocus System: STM Motor

• Mount: Canon RF

Perfect for Everyday Expression

The Canon RF 45mm F1.2 STM opens the door to fast-aperture photography for enthusiasts and content creators. Combining high impact visuals, smooth autofocus, and lightweight handling, it’s a lens that empowers you to shoot with confidence — from expressive portraits to atmospheric low-light scenes.

Capture more light. Create more depth. Express more with the Canon RF 45mm F1.2 STM.