Product Highlights
  • f/2.8 - f/22 Maximum Aperture
  • 8/6 Elements/Groups
  • Full-Frame Format
  • 7 Aperture Blades
  • STM Stepping Motor
  • 55mm Filter Diameter
  • RF Mount
Canon RF 28mm F2.8 STM Lens Canon RF 28mm F2.8 STM Lens
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RF28mm F2.8 STM

A super-compact, wide-angle lens great for travel, street photography, and video and is a great entry point for full frame EOS R cameras.

Great for still photography and videography, 28mm has been the starting point for getting a wide-angle “look” in pictures and video for decades — wide enough on a full-frame camera, to have a distinct wide-angle character, and yet not so wide that it becomes a challenge to use. This lens absolutely can also be used with APS-C sensor EOS R-series cameras, like the EOS R7, R10, and R50. Its super-compact design combines beautifully with them, and on an APS-C sensor, it provides coverage equal to a standard 45mm lens. Its super-flat design belies the fact that this lens delivers 28mm wide-angle coverage on full frame cameras, along with an f/2.8 maximum aperture. The lens’s minimum focus distance is approximately 9 inches; it accepts 55mm filters, and with the incredibly small front lens element, it uses an optional, dedicated Canon screw-in lens hood EW-55. This compact 28mm RF lens is worth checking out, even if you already own other wide-angle lenses, and carries an attractive price, putting it within reach of many Canon EOS R-series users.

An ultra-portable “everyday” lens for when weight and size matter

The RF28mm F2.8 STM makes for a lightweight and comfortable, all-day lens whether you are vlogging or shooting stills. It's ideal for capturing everything you see along the way, especially if you are traveling. Even when shooting with an APS-C camera (45mm equivalent), it is still a very capable lens to capture everything around you.  Best of all, it won’t break the bank.

Excellent image quality

Taking advantage of the Canon RF lens mount, the RF28mm F2.8 STM lens offers great optical quality, edge-to-edge. Its optical design includes three aspheric elements, and Canon Super Spectra Coating (SSC) to minimize ghosting and flare.  And the f/2.8 aperture really shines in low-light situations 

Lead Screw-type STM

Canon's stepping motor (STM) technology is especially effective at producing smooth, quiet autofocus during video recording, even in low light. This lens is a perfect choice for multi-media content creation with quiet autofocus. And, STM focus drive provides responsive, quick - and exceptionally quiet - AF during still-image shooting, as well.

Control Ring for Direct Setting Changes

The  RF28mm F2.8 STM lens incorporates a Focus/Control ring on the lens barrel that can directly adjust numerous settings including shutter speed, aperture, exposure compensation and more. Located towards the front of the lens and effectively adding a third dial to the EOS R camera's main dial and quick control dial. This Focus/Control ring can quickly be set to AF, MF, or Control thanks to the dedicated switch on the barrel of the lens.

Impressively compact and light at only 0.6 lbs/9.5 oz.

The compact size and light weight of the lens makes it an ideal companion on long days and adventures. It is also handy for a day out shooting and when you want to be creative without having to carry multiple lenses.

What's Included

RF 28mm F2.8 STM Lens
Front Lens Cap
Rear Lens Cap
Lens Hood


Product Specifications

RF28mm F2.8 STM


Focal Length


Maximum and Minimum Aperture


Lens Mount Type

RF Mount

Compatible Cameras

Canon EOS R-series, full-frame and APS-C (focal length equivelant to
approx45mm when used on an APS-C camera)

Minimum Focusing Distance

0.23m (9.1 in.)

Maximum Magnification


Field of View, at Minimum Focus Distance

Approx. 204 × 136mm (8.0 x 5.4 in.)

Angle of View (Diagonal)

Approx. 75° 00’

Optical Design

Lens Construction

8 elements in 6 groups

Special Elements

(Three) Aspheric lenses

Lens Coating

Canon SSC (Super Spectra Coating)

Filter Size Diameter

ø55 mm

Aperture Blades


Image Stabilization



Focusing Drive System

Canon STM (Leadscrew type STM)

Full-time Manual Focusing

(Supports both ONE SHOT AF and SERVO AF with compatible EOS R-series

Dual Pixel CMOS AF Coverage (Horizontal x Vertical)

• EOS R — Approx. 88% x 100%
• EOS R5 — Approx. 100% x 100%
• EOS R7/R10 — Approx. 100% x 100%

Exterior Design

Control Ring

Dual-function Manual focus ring / Control Ring (selected using switch on lens)

Manual Focus Ring

Electronic ring system
• Full-time Manual focus possible
• No physical limit to ring rotational angle

AF/MF Switch


MF/Control Ring Switch


Distance Scale

• Distance scale available in EVF or Live View LCD screen of compatible
EOS R-series cameras

Distance Limiter Switch


Dust / Weather Resistant Construction



Lens hood

Canon EW-55 (Optional accessory, sold separately)

Lens Cap

(Front) Canon E-55 (center pinch-type) (Bundled)

Dust Cap

Canon Lens Dust Cap RF (Bundled)

Lens Case

Canon Lens Case LP811
• Optional accessory, sold separately

Extension Tubes

None (No Canon RF mount extension tubes)

Close-up Lenses 250D / 500D

Not Compatible

Canon RF Extender 1.4x/2x

Not compatible

Canon Gelatin Filter Holder III/IV

Not compatible

Questions & Answers

Canon RF 28mm F2.8 STM Lens

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