Product Highlights
  • f/5.6-8 ~ f/32-45 Aperture Range
  • 12 / 9 Elements / Groups
  • 9 Aperture Blades
  • Nano USM Motor
  • Optical IS Image Stabilization
  • 67mm Filter Diameter

Estimated Release Date: Oct 17, 2021

This exciting new product is being released in limited quantity. Orders will be filled on a first-come, first-served basis. A credit card authorization will be processed upon placing your order. We will only charge your credit card at time of shipment.

Hot Product
Pre-Order - Reserve Yours Now!
Canon RF 100–400mm F5.6–8 IS USM Lens Canon RF 100–400mm F5.6–8 IS USM Len...
Web Availability: Pre Order
This is a NEW product available for Pre-Order only. Place your order and you will be one of the first in line to receive it when the manufacturer ships to us. Orders are filled by the date received.
Vistek Locations
  • Toronto Pre Order
  • Ottawa Pre Order
  • Mississauga Pre Order
  • Calgary Pre Order
  • Edmonton Pre Order
Please call and verify availability at the store as stock changes daily.


RF 100-400mm F5.6-8 IS USM Lens

Perfect for wildlife, sports, travel and more, the RF100-400mm F5.6-8 IS USM is a compact, lightweight telephoto lens for EOS R Series cameras, offering a versatile zoom range that brings subjects closer with ease. 

Key Features:

  • Compact, lightweight and high-image quality RF tele zoom lens, with a versatile zoom range of 100-400mm
  • Optical Image Stabilizer with up to 5.5 Stops of shake correction
  • Up to 6 stops of shake correction when paired with EOS R series cameras featuring In-Body Image Stabilizer (IBIS)
  • Minimum focusing distance of 2.89 feet at 200mm and maximum magnification of 0.41x at 400mm
  • High speed, smooth and quiet autofocus with Canon’s Nano USM
  • 9-blade circular aperture for beautiful bokeh
  • Control Ring for direct setting changes
  • Compatible with optional Canon Extenders RF1.4x and RF2x

The RF100-400mm F5.6-8 IS USM is similar in size to the EF 70-300mm F4.5-5.6 IS II USM lens, and not only reaches to 400mm, but also has fast Nano USM focusing and up to 6 stops of Coordinated IS when used in combination with an EOS R series camera featuring In-body Image Stabilization, like the EOS R5 and EOS R6, or 5.5 stops with an EOS R/RP camera. 

Using a single Ultra Low Dispersion lens element towards the front of the lens group corrects chromatic aberration throughout the entire zoom range, making your images look crisp and colorful with minimal color blur. The RF100-400mm F5.6-8 IS USM lens can also accept both the RF1.4x and RF2x tele extenders giving you the effective maximum focal length of 560mm and 800mm respectively. With a control ring that allows for quick setting changes, including shutter speed and aperture, the RF100-400mm F5.6-8 IS USM lens puts quality, convenience and control in your hands.

What's Included

RF100-400mm F5.6-8 IS USM Lens
Lens Cap E-67II
Lens Dust Cap RF


Product Specifications

RF 100-400mm F5.6-8 IS USM Lens


Focal Length 100-400mm
Maximum and Minimum Aperture (Max.) f/5.6 – f/8 (f/8 at 400mm position)
(Min.) f/32 – f/45 (f/45 at 400mm position)
Lens Mount Type RF Mount; Metal Mount
Minimum Focusing Distance 3.94 feet (1.2m) at 100mm
2.89 feet (0.88m) at 200mm
3.44 feet (1.05m) at 400mm
Maximum Magnification 0.41x, at 400mm (0.09x at 100mm)
Field of View, at Minimum Focus Distance Approx.
(100mm) — 10.2 x 15.2 in. (260 x 386mm)
(400mm) — 2.2 x 3.3 in. (57 x 85mm)
Angle of View (Diagonal) Approx. 24° – 6°10"

Extender RF Compatibility

Compatible with Canon Extender RF1.4x / RF2x Yes
Equivalent Focal Length / Maximum Aperture RF1.4x — 140mm–560mm, f/8–11
RF2x — 200–800mm, f/11–16
Maximum Close-focusing Magnification RF1.4x — 0.12x – 0.58x
RF2x — 0.18x – 0.83x
Autofocus with EOS R Series Cameras (as of September 2021) Possible with either extender, at all zoom settings
Image Stabilizer, with EOS R series Cameras (as of September 2021) Possible with either extender, at all zoom settings

Optical Design

Lens Construction 12 elements in 9 groups
Special Elements (One) UD-glass element
(One) Aspherical element
Lens Coating Canon SSC (Super Spectra Coating)
Filter Size Diameter Ø67mm
Aperture Blades 9; circular shape


Focusing Drive System Nano USM; rear focusing system
Full-time Manual Focusing Yes (Lens Electronic MF)
Dual Pixel CMOS AF Coverage (Horizontal x Vertical) EOS R, EOS RP
Approx. 88% x 100%
  • With Extender RF1.4x — approx. 80% x 80%
  • With Extender RF2x — approx. 40% x 60%
Approx. 90% x 100%
Face+Tracking horizontal: approx. 100% x 100%
  • With Extender RF1.4x — approx. 80% x 80%
  • With Extender RF2x — approx. 40% x 60%

Image Stabilization

IS On/Off Image Stabilizer switch, on lens barrel
OIS Provided
  • 5.5 stops optical IS correction (at 400mm)
  • Conforms to CIPA test standards, using EOS R
Coordinated IS Provided
  • 6 stops Coordinated IS correction (at 400mm)
  • Conforms to CIPA test standards, using EOS R-series cameras with In-Body Image Stabilization
IS Mode Selection None (Automatic switching to panning correction IS, when panning is detected)
Panning Mode Support Supported

Exterior Design

Control Ring Provided (with click-stops)
  • Programmable via “Customize Dials” in camera’s Custom Functions menu
  • 58 clicks per revolution
  • Clicks can be removed by Canon service center, for a service fee
Manual Focus Ring Electronic ring system
  • Full-time Manual focus possible
  • No physical limit to ring rotational angle
Distance Scale None
  • Distance scale available in EVF or Live View LCD screen of compatible EOS R-series cameras
Distance Limiter Switch None
Dust / Weather Resistant Construction None

Physical Specifications

Max. Outer Diameter x Length Approx. 6.48 in. x ø3.13 in. (164.7 x ø79.5mm)
Weight Approx. 22.4 oz. / 1.4 lb. / 635g


Lens Hood Canon ET-74B
  • Optional accessory, sold separately
Lens Cap (Front) Canon E-67 II (center pinch-type) (Bundled)
(Rear) Canon Dust Cap RF
Dust Cap Canon Lens Dust Cap RF (Bundled)
Lens Case Canon Lens Case LP-1224
  • Optional accessory, sold separately
Extension Tubes None (No Canon RF mount extension tubes)
Close-up Lenses 250D / 500D None (no 67mm size available)

Questions & Answers

Canon RF 100–400mm F5.6–8 IS USM Lens

Looking for a personal touch? Not sure if you are choosing the right product? Our staff is here to help.

We want to make sure you get the right product for your needs.
Our staff will help you understand the options available so you can be confident in your purchase.

As the country’s leading Professional Imaging retailer, Vistek is in the perfect position to ensure you make the right choice.
Contact us today for a personal touch.