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Canon RF 16–28mm F2.8 IS STM · Photo source

Canon RF 16–28mm F2.8 IS STM
Photo 1 of 5

Canon RF 16–28mm F2.8 IS STM · Photo source

Canon · RF

RF 16–28mm F2.8 IS STM

Released February 2025

A compact full-frame RF ultra-wide zoom with a constant f/2.8 aperture, STM autofocus and optical image stabilisation.

Mount
Canon RF
Focal length
16–28 mm
Max aperture
f/2.8
Stabilisation
Yes
Weight
445 g

What reviewers say

Both reviews praise corrected image quality, quiet fast autofocus and compact size, while stressing dependence on digital distortion correction. Digital Camera World likes the retractable design and travel value, but measures less stabilisation than claimed. OpticalLimits dislikes the extra deployment step and questions pricing against L-series alternatives, while finding strong central sharpness and respectable corrected corners.

From digitalcameraworld.com and opticallimits.com

Optics

Lens type
Zoom
Focal length
16–28 mm
Maximum aperture
f/2.8
Minimum aperture
f/22
Optical construction
16 elements in 13 groups
Special elements
Four UD elements and two aspherical elements, including a large-diameter replica aspherical element
Diaphragm
Nine blades
Angle of view
Full-frame horizontal 98°–65°, vertical 74°10′–46° and diagonal 108°10′–75°

Mount and compatibility

Mounts
Canon RF
Image circle
Full frame
Compatibility
Canon EOS R cameras; full-frame image circle. Physical 16–28 mm focal length, distinct from RF16mm F2.8 STM prime

Focus and stabilisation

Autofocus
Yes
Minimum focus distance
0.2 m
Maximum magnification
0.26×
Optical stabilisation
Yes
Autofocus detail
Lead-screw STM autofocus and electronic full-time manual focus; inner focusing keeps lens length constant during focusing
Focus distance detail
Maker minimum focus distance 0.20 m at 28 mm; Digital Camera World reports 0.25 m at 16 mm. Maker AF/MF distinction absent and omitted
Magnification detail
Maker maximum magnification 0.26× at 28 mm; no unpublished AF/MF distinction inferred
Stabilisation detail
Lens optical IS rated 5.5 stops at 28 mm with EOS R8, yaw/pitch under CIPA2024. Coordinated EOS R1 body/lens IS rated eight central and7.5 peripheral stops at28mm, yaw/pitch/roll. Digital Camera World measured about four stops on EOS R8 at16mm, a different test condition
Video features
Maker describes smooth quiet movie autofocus; Digital Camera World reports minimal focus breathing

Design

Dust and moisture resistant
Yes
Filter diameter
67 mm
Maximum diameter
76.5 mm
Length
91 mm
Weight
445 g
Controls
Shared focus/control ring and AF/control/MF selector; separate zoom ring and IS switch
Zoom design
Retractable zoom must be extended for shooting; maker length91mm stored,112.8mm at16mm and102.1mm at28mm. Camera-side electronic distortion correction is part of the optical design according to Canon Camera Museum
Filter detail
67 mm front filter thread
Weather resistance
Dust and moisture resistant construction requires attachment to a camera; cannot completely prevent dust or water ingress and is not waterproof
Dimensions detail
Approximately76.5mm maximum diameter ×91mm stored;112.8mm long at16mm and102.1mm at28mm
Weight detail
Approximately445g lens
Lens hood
EW-73E, sold separately
In the box
UK maker store lists lens, E-67 II front cap, Lens Dust Cap RF and user manual
Release detail
February2025 marketed month in Canon Camera Museum; original Japan maker announcement and FAQ specify lateFebruary. No exact international first retail day inferred. Co-sold ultra-wide zooms are alternatives, with no inferred successor link

Pros and cons

Pros

  • Constant f/2.8 aperture
  • 445 g lens weight
  • Optical stabilisation and weather resistant construction

Cons

  • Must extend from its storage position before shooting
  • Hood sold separately
  • Relies on electronic distortion correction

Closest rivals

Model
MountFocal lengthMax apertureStabilisationWeightReleased
Canon RF15–35 mmf/2.8Yes840 gSept 2019
Canon RF15–30 mmf/4.5–6.3Yes390 gAug 2022
Canon RF14–35 mmf/4Yes540 gSept 2021

Sources

  1. canon.co.uk/store/canon-rf16-28mm-f2-8-is-stm/6906C005
  2. personal.canon.jp/product/camera/rf/rf16-28-f28/spec
  3. personal.canon.jp/product/camera/rf/rf16-28-f28
  4. faq.canon.jp/app/answers/detail/a_id/105228
  5. global.canon/en/c-museum/product/rf547.html
  6. corporate.jp.canon/newsroom/newsrelease/2025/pr-0123
  7. digitalcameraworld.com/cameras/lenses/canon-rf-16-28mm-f-2-8-is-stm-review

Photo: personal.canon.jp

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