RF-S18-45mm F4.5-6.3 IS STM (Delivery will take 2 months)


A compact and lightweight standard zoom lens designed for EOS R system APS-C cameras with a versatile focal length equivalent to 29-72mm in 35mm full frame format and weights only 130g with 44.3mm length. Its 7 elements in 7 groups design with 2 PMo aspherical lenses ensures high image quality. Its optical image stabilizer offers 4-stop1 shake compensation and up to 6.5-stopwhen used with EOS R cameras with In-Body Image Stabilization.

Compatible cameras: EOS R series mirrorless cameras


Standard APS-C zoom Lens

Ultra Lightweight & Compact Design

RF-S18-45mm F4.5-6.3 IS STM is designed for EOS R camera with APS-C sized sensor, providing a versatile focal length equivalent to 29-72mm in 35mm full frame format. The Lens compact design only measures 44.3mm in length and weights 130g, making it an extremely portable lens for use in daily life. With its size and versatile focal length,  it is a good companion for capturing a variety of topics, like snapshots, food, pets’ photography or portraits.

EOS R10 • ISO 200 • 1/20s • f/16 • 18mm

EOS R7 • ISO 100 • 1/60s • f/6.3 • 45mm

EOS R10 • ISO 100 • 1/100s • f/6.3 • 45mm

EOS R10 • ISO 400 • 1/3200s • f/4.5 • 18mm

The lens features a new lens barrel extension and retraction mechanism, which can extend the lens from stow to shooting position simply by turning the zoom ring without the need for an extra lock switch.  This makes the lens operation much simpler.  

High Image Quality

Taking the advantage of RF Mount’s large diameter and short back focus, the 7 elements in 7 group optical design of RF-S18-45mm F4.5-6.3 IS STM features 2 PMo aspherical lens to minimize aberrations and delivery high image quality across the entire frame. Also, the 7-blade aperture of the lens provides impressive bokeh.

EOS R10 • ISO 100 • 1/200s • f/5.6 • 31mm

Outstanding Close-Up Capability

EOS R10 • ISO 100 • 1/125s • f/5 • 28mm

RF-S18-45mm F4.5-6.3 IS STM features outstanding ability in capturing close-up images. When using with autofocus, it provides up to 0.16x magnification (at 45mm) and minimum focusing distance at 0.2m. (at 18mm)

While using with manual focus, it can provide up to 0.26x magnification at 45mm and minimum focusing distance at 0.15m. (at 18mm)

High Speed AF

 RF-S18-45mm F4.5-6.3 IS STM is equipped with a leadscrew-type Stepping Motor (STM) and a rear focus system to provide quick and smooth AF for still images and video shooting.

Image Stabilizer

The lens optical image stabilizer offers up to 4-stop shake compensation1 to facilitate handheld shooting with a slower shutter speed. When used with the EOS R series cameras equipped with In-Body Image Stabilization, a stunning 6.5-stop shake compensation3 is achieved through Coordinate Control IS.

Focus/Control Ring


Featuring "Focus/Control Ring" design3 which user can easily  switching with camera’s menu between Full-time manual focusing and Control Ring operation such as aperture, shutter speed, ISO speed or exposure compensation adjustment.

Compatible with full-frame EOS R cameras


RF-S18-45mm F4.5-6.3 IS STM is also compatible with full-frame EOS R bodies, while mounted on a Full Frame EOS R-series camera, [1.6x (crop)] will be set automatically.

Compatible with Electronic full-time MF


The lens is compatible with Electronic full-time MF4,   focus can be adjusted manually with focus ring anytime during ONE SHOT AF or SERVO AF.

Lens Hood EW-53 (Optional)


The optional petal-shape Lens Hood EW-53 further enhances flare resistance.

CIPA Standard, Focal Length: 45mm, EOS R10 is used. In yaw/pitch direction.
2  CIPA Standard, Focal Length: 45mm, EOS R7 is used. In yaw/pitch direction.
3 Operates as Focus Ring only when mounted on EOS R5/R6/R/Ra/RP.
4 ForEOS R series camera supporting electronic full-time manual focus. Please refer to camera’s instruction manual for details.


Lens Diagram

MTF Graph

[Note for RF-S18-45mm F4.5-6.3 IS STM]

  • To use this lens with EOS R, EOS Ra or EOS RP, please download the latest version of firmware from Canon website and install on camera.
  • To display or edit images shot with this lens, it requires compatible camera applications. Please download the latest Digital Photo Professional and Picture Style Editor from the Canon website. Please download Digital Photo Professional Express from App Store.
  • Multiple exposure shooting is not supported when using with EOS R5/R6/R/Ra/RP, it is also not possible to shoot multiple exposures with another lens using images shot with this lens.
  • The lens distortion correction on the camera is set to [Enable] automatically when in use.
More Information
Lens Mount Type RF mount
Angle of View (Diagonal) 74°20′ - 33°40′
Lens Construction 7 Elements in 7 Group
Aspherical Lens (Piece) 2
No. of Diaphragm Blades 7 (Circular Blade)
Minimum Aperture 22-32
Minimum Focusing Distance (m) When using AF: 0.20m (at 18mm)
When using MF: 0.15m (at 18mm)
Maximum Magnification (x) When using AF: 0.16x (at 45mm)
When using MF: 0.26x (at 45mm)
Drive System Leadscrew-type Stepping Motor
Full Time Manual Support
Image Stabilizer Effectiveness 4-stop
(CIPA Standard, Focal Length: 45mm, EOS R10 is used)
Image Stabilizer Mode Mode 1/2 (auto)
Filter Diameter 49mm
Length x Max. Diameter (mm) 44.3 x Ø69.0
Weight (g) 130

Box Content:

  • RF-S18-45mm F4.5-6.3 IS STM lens
  • Lens Cap E-49
  • Lens Dust Cap RF
  • Instruction Manual
  • Purchase Record Card
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