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RF16mm F2.8 STM Lens


Item Code: 5051C002AA


Canon’s first ultra wide-angle, fixed focal length RF lens


A fixed ultra-wide angle lens changes how you see your image before you even press the shutter button. Your enhanced perspective and expansive views create a unique and engaging look of each photo. Whether you are capturing an awe-inspiring starscape, portraits with fun and unique distortion or simply a group selfie while on vacation, the combination of the open f/2.8 lens and ultra wide-angle 16mm field of view makes this a light weight and versatile lens to pack anywhere you go.

High image quality and bright, fixed f/2.8 maximum aperture


A bright f/2.8 lens combined with the full-frame sensor of each EOS R series digital camera allows for fast shutter speeds in low light with less noise and the ability to beautifully blur the background in close-up shooting or video recording.

A stepping motor (gear-type STM) that provides smooth and quiet continuous AF during video recording


Using a stepping motor in the RF16mm F2.8 STM lens aids in natural focus while following a subject using Servo AF in still photography, or clean transitions when repositioning to another subject with Movie Servo AF in video applications. Canon's STM focus motors are especially renowned for their smoothness in focus changes during live video recording, as well as brisk AF during still-image shooting.

Supremely lightweight and compact, for an ultra-wide lens for full-frame cameras


The compact size and light weight of the lens makes it an ideal companion on long hikes and excursions. It is also handy for a day out in the city and when you want to be creative with multiple prime lenses.

Minimum focusing distance of 5.11 inches and maximum magnification of 0.26x


Getting close to your subject with the RF16mm F2.8 STM lens means purposefully distorting your subject, creating an enjoyable new look while also keeping more of the background in frame for visual interest.

Control/Focusing Ring can directly adjust numerous settings


The RF16mm F2.8 STM lens incorporates a control/focus ring on the lens barrel. As a Control Ring, it can directly adjust numerous settings including shutter speed, aperture, exposure compensation and more. Located towards the end of the lens, the control/focus ring has a tactile, easily distinguished surface and provides tangible feedback for confident use while looking through the viewfinder.

Circular 7-blade aperture helps deliver beautiful, soft backgrounds


You'll have no problem when shooting close-up images in getting that creative, fun and pleasantly smooth out-of-focus background blur we all love with the circular 7-blade aperture. Subjects will stand out, and the background provides a beautiful backdrop that's visually appealing in itself.


Focal Length


Maximum and Minimum Aperture

F2.8 – F22

Lens Mount Type

RF Mount; Metal Mount

Compatible Cameras

Canon EOS R-series, including full-frame

Minimum Focusing Distance

5.1 in. / 0.43 ft. / 0.13m

Maximum Magnification


Field of View, at Minimum Focus Distance

Approx. 5.3 x 3.5 in. (134 x 90mm)

Angle of View (Diagonal)

Approx. 108°10

Lens Construction

9 elements in 7 groups

Special Elements

(One) Aspherical element

Lens Coating

Canon SSC (Super Spectra Coating)

Filter Size Diameter


Aperture Blades

7; circular shape

Image Stabilization

None (with EOS R5 in-body stabilization – 5.5 stops correction)

Focusing Drive System

Canon STM (Stepping motor; gear-type)

Full-time Manual Focusing

(after One-Shot AF; after Servo AF with compatible EOS R-series cameras)

Dual Pixel CMOS AF Coverage (Horizontal x Vertical)

  • EOS R/RP — Approx. 88% x 100%
  • EOS R5/R6 — Approx. 90% x 100%
  • Face Detect + Tracking – Approx. 100% x 100%

Control Ring

Dual-function Manual focus ring / Control Ring (selected with switch on lens)
  • No clicks when set to Control Ring function

Manual Focus Ring

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

AF/MF Switch

None - focus mode selected in camera menu

MF/Control Ring Switch

Provided on lens barrel

Distance Scale

(after One-Shot AF; after Servo AF with compatible EOS R-series cameras)

Distance Limiter Switch

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

Dust / Weather Resistant Construction


Maximum Outer Diameter x Length

Approx. 1.6 in. x 2.7 in. (40.1 x ø69.2mm)


Approx. 5.8 oz. / 0.4 lb. / 165g

Lens hood

Canon EW-65C
  • Bayonet-mount, petal-shaped hood
  • Optional accessory, sold separately

Lens Cap

(Front) Canon E-45 (center pinch-type) (Bundled)
(Rear) Canon Dust Cap RF

Dust Cap

Canon Lens Dust Cap RF (Bundled)

Lens Case

Canon Lens Case LP1014
  • Optional accessory, sold separately

Extension Tubes

None (No Canon RF mount extension tubes)

Close-up Lenses 250D / 500D

None (no ø43mm size available)

Canon RF Extender 1.4x/2x

Not compatible

Canon Gelatin Filter Holder III/IV

Not compatible

RF16mm F2.8 STM Lens

RF16mm F2.8 STM Lens
  • RF16mm F2.8 STM Lens
  • Lens Cap E-43
  • Lens Dust Cap RF

Compatible Supplies & Accessories

Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you RF16mm F2.8 STM Lens that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store



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Sample Images

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*ISO speed is based on recommended exposure index.

This is to make Misc appear on the page when needed.

† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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