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Canon RF 100-400mm f/5.6-8 IS USM

Super telephoto zoom lens for Canon EOS R mirrorless cameras

Item # 280RF1H4H

This versatile zoom lens captures all sorts of interesting perspectives outdoors — from wildlife to the moon.

This versatile zoom lens captures all sorts of interesting perspectives outdoors — from wildlife to the moon.

In stock

$649.00 -$150.00 Instant savings Instant savings ends 11/28


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About the Canon RF 100-400mm f/5.6-8 IS USM

An excellent outdoor companion for EOS R shooters

My passion for photography began with taking pictures of the full moon, and some of my favorite shots came from a telephoto zoom lens much like the Canon RF 100-400mm f/5.6-8 IS USM. 

An excellent outdoor companion for EOS R shooters

My passion for photography began with taking pictures of the full moon, and some of my favorite shots came from a telephoto zoom lens much like the Canon RF 100-400mm f/5.6-8 IS USM. 

It lets you photograph subjects that are relatively close, like your dog playing in the yard. But with a flick of the wrist, you can extend this lens all the way out to 400mm and capture detailed photos of far-away wildlife, distant sunsets, and even lunar landscapes.

Built-in stabilization for smooth, steady shots

This lens is compatible with Canon EOS R Series mirrorless cameras, and can be used with Canon's Extender RF1.4x or Extender RF2x for even greater reach. Built-in image stabilization makes it a particularly good match with non-stabilized bodies, like the EOS R or RP.


Product highlights:

  • ideal for nature, wildlife, and aviation photography
  • lens type: RF mount full-frame
  • compatible with Canon EOS R Series mirrorless cameras
  • variable 100-400mm focal length
  • can be used with Canon's Extender RF1.4x or Extender RF2x  for even greater reach
  • retractable lens barrel makes for a compact, easy-to-store design when not in use
  • optical image stabilization with up to 6 stops of shake correction
Design and construction:
  • Nano USM (Ultrasonic Motor Technology) focus motor for fast, silent autofocus
  • Super Spectra coating reduces lens flare and ghosting
  • customizable control ring on lens barrel allows direct adjustments to settings like shutter speed and aperture
  • variable maximum aperture of f/5.6 (at 100mm) to f/8 (at 400mm)
  • minimum focus distance: 3.94 feet at 100mm
  • lens construction: 12 elements in 9 groups, including:
    • 1 UD (Ultra-low Dispersion) element to reduce chromatic aberration
    • 1 aspherical element for outstanding contrast and clarity
  • 9-blade circular aperture for rendering beautiful of out-of-focus background elements
  • filter/attachment size: 67mm
Dimensions and warranty:
  • length fully extended: 6-3/4"
  • diameter: 3-1/16"
  • weight: 22.4 oz.
  • includes front and rear lens caps
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 5050C002

What's in the box:

  • RF100-400mm F5.6-8 IS USM Zoom Lens
  • Lens Cap E-67II (installed)
  • Lens Dust Cap RF (installed)
  • Canon International Lens Instructions
  • Warranty Card

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More details on the Canon RF 100-400mm f/5.6-8 IS USM

Mark G.

Product Research


Overview: The Canon RF 100-400mm f/5.6-8 IS USM is a telephoto zoom lens made for Canon's EOS R Series cameras. The RF100-400mm lens has a wide zoom range that is ideal for sports, wildlife, and other long-distance photography. Its Optical Image Stabilization works with EOS R series cameras to provide up to 6 stops of stabilization.

Lens Construction: The lens is constructed of 12 lens elements in 9 groups, including one Aspherical lens element, and one UD element for reducing chromatic aberration throughout the zoom range. RF-series lenses have a large 54mm lens mount, with large diameter elements to give you brilliant images with minimal light fallout.

12-pin Communication: The Canon RF-series lenses feature a 12-pin communication system between the camera and the lens (compared to 8 pins for the EF-series). This 12-pin system is the fastest available for a Canon lens and camera combination, and provides faster AF, Image Stabilization, Digital Lens Optimizer, and more. In addition, the EOS R camera can display lens information directly to the viewfinder, making it easy to confirm the lens' focal length without looking away from your subject.

Zoom Ring: The RF 100-400mm lens has a rotating-type zoom ring, instead of a sliding zoom mechanism. The rotating action makes it easier for traveling, because it is less likely for gravity to inadvertently change the zoom position. The Zoom Ring lock lever lets you fix the lens at the shortest (wide angle) position, making it more convenient for carrying the camera on a strap, because it prevents the lens from extending.

Focus Mode Switch: The lens has a 2-way Focus Mode switch that lets you choose between Auto Focus (AF) and Manual Focus (MF). In MF mode, the focus is set by turning the focus ring.

Control Ring: The RF 100-400mm lens features a control ring that can be assigned commonly used functions, such as shutter speed and aperture settings. It has a click action to give you a sense of how much it's being turned. In some cases, the sound of the control ring clicks may be picked up when recording movies. To remove the clicking sound, you will need to send the lens to the Canon Service Center for service. There is a charge for this service.

Image Stabilizer (IS): The RF 100-400mm lens features Optical Image Stabilization (IS) when mounted to a Canon EOS R series camera. When used with the EOS R5 and EOS R6 cameras with In-Body Image Stabilization, the Coordinated IS correction effect is equivalent to 6 stops. For an EOS R/RP camera, the stabilization effect is equivalent to 5.5 stops. The camera and the lens share data to dramatically reduce blur caused by camera shake while shooting still images and videos. Image Stabilization can be turned on or off with the On/Off switch on the lens barrel.

USM: The RF 100-400mm lens is equipped with a Nano USM (Ultrasonic Motor) auto focus motor, which quickly and quietly auto focus on fast moving subjects. Focus tracking is more accurately captured as well.

Optional Lens Hood: The optional ET-74B bayonet-type lens hood cuts out unwanted light and protects the front of the lens from rain, snow, and dust. When not in use, you can reverse-mount the lens hood for storage.

Optional Filters: The RF 100-400mm lens has a 67mm mounting thread on the front of lens for attaching screw-on type filters.

Optional Extenders: The lens is compatible with the Canon RF1.4x and RF2x extenders which give you the following specifications:

  RF1.4x RF2x
Wide Tele Wide Tele
Focal Length (mm) 140mm 560mm 200mm 800mm
Aperture f/8 - f/45 f/11 - f/64 f/11 - f/64 f/16 - f/91
Angle of View


14° 40' 3° 40' 10° 00' 2° 35'
Vertical 9° 50' 2° 25' 7° 00' 1° 40'
Diagonal 17° 35' 4° 25' 12° 00' 3° 05'
Maximum Magnification 0.12x 0.58x 0.18x 0.83x


  • Focal Length: 100-400mm
  • Maximum Aperture: f/5.6 - f/8
  • Minimum Aperture: f/32 - f/45
  • Maximum Magnification: 0.41x (at 400mm)
  • Aperture Design: 9-blade circular
  • Angle of View:
    • Horizontal: 20° to 5° 10'
    • Vertical: 14° to 3° 30'
    • Diagonal: 24° to 6° 10'
  • Lens Construction: 12 elements in 9 groups (1 UD lens element, 1 Aspherical element)
  • Filter Diameter: 67mm
  • Minimum Focus Distance: 3.94' (at 100mm); 2.89' (at 200mm); 3.12' (at 300mm); 3.44' (at 400mm)
  • Dimensions: Diameter 3.066", Length 6.759" (7.436" with caps)
  • Weight: 22.4 ounces

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Customer Q&A

3 questions already asked

Is the warranty from Canon USA?
[ Jerry & Rhona  Oct 05, 2022 ]
1 answer
Yes the warranty comes from Canon USA
[ Arielle  Oct 05, 2022 ]  Staff
Is this product compatible with a Cannon EOS RP?
[ Cory  Aug 29, 2022 ]
1 answer
Greetings Cory, and thank you for your question. Yes it is, and it can be found under the accessories page on the Canon EOS RP body page.
[ Thomas J.  Aug 29, 2022 ]  Staff
Is the Canon RF 100-400mm f/5.6-8 IS USM lens compatible with an older model Canon EOS Rebel T1i?
[ Kenta  Jul 24, 2022 ]
1 answer
The EOS Rebel T1i is not compatible with RF lenses. For help with picking the right lenses for your needs, please give our advisors a call at 1-800-324-9695.
[ Nemo  Jul 24, 2022 ]  Staff

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