Canon RF 400mm F2.8L IS USM Super telephoto Lens for Mirrorless Cameras

Canon RF 400mm F2.8L IS USM Super-Telephoto Lens

The Canon RF 400mm F2.8L IS USM is a professional super-telephoto prime lens designed for wildlife, sports and action photography. Combining a bright f/2.8 maximum aperture with rapid autofocus, advanced optical construction and up to five stops of image stabilisation, it delivers outstanding performance in demanding environments.

Fluorite and Super UD elements help produce exceptional sharpness and clarity, while ASC and Super Spectra coatings reduce flare and ghosting. Canon’s renowned L-series construction, extensive weather sealing and heat-reflective white finish make the lens ready for professional use indoors or outdoors.

Key Features

• Professional 400mm RF-mount super-telephoto prime

• Bright f/2.8 maximum aperture

• Exceptional sharpness across the frame

• Up to five stops of optical image stabilisation

• Dual Power Focus Drive for faster AF with compatible cameras

• Full-time manual focus adjustment

• Fluorite and Super UD lens elements

• ASC and Super Spectra optical coatings

• Minimum focusing distance of 2.5m

• Weather-sealed L-series construction

• Heat-reflective white exterior finish

• Compatible with Canon RF 1.4x and RF 2x Extenders

• Weighs approximately 2,890g

Exceptional Image Quality

Canon has combined Fluorite and Super UD glass elements to control chromatic aberration and maintain excellent resolution throughout the frame. The result is detailed, high-contrast imagery with accurate colour rendition, even when the lens is used at its maximum f/2.8 aperture.

Air Sphere Coating and Super Spectra coatings help minimise flare, ghosting and internal reflections. This supports clear, well-defined results when photographing backlit subjects or working around bright stadium lights.

Bright F2.8 Aperture

The wide f/2.8 maximum aperture allows more light to reach the camera’s sensor, making the lens particularly effective for early-morning wildlife, evening sports and other challenging lighting conditions.

It also creates strong background separation and smooth bokeh, helping athletes, animals and other subjects stand out clearly from distracting surroundings.

Fast, Accurate Autofocus

A powerful USM autofocus system provides the speed and precision required to follow unpredictable subjects. The Dual Power Focus Drive can draw additional power from compatible EOS R-series cameras, increasing focus-motor speed to help acquire and track moving subjects more effectively.

Full-time manual focusing allows precise adjustments without first switching out of autofocus mode. Conveniently positioned AF start and stop controls provide additional flexibility when working quickly.

Up to Five Stops of Image Stabilisation

Built-in optical image stabilisation provides up to five stops of compensation, helping reduce the effects of camera shake when shooting handheld or working with slower shutter speeds.

Combined with the lens’s carefully balanced design and comparatively low 2,890g weight, the stabilisation system makes handheld shooting more practical when mobility is essential.

Professional L-Series Construction

The RF 400mm F2.8L IS USM is designed to meet the demands of professional photography. Its durable L-series construction incorporates weather sealing to help protect against dust and moisture when working outdoors.

Canon’s signature white finish reflects heat in bright sunlight, helping to maintain consistent performance during prolonged use at sporting events, wildlife locations and other exposed environments.

Greater Reach with RF Extenders

Compatibility with Canon’s RF 1.4x and RF 2x Extenders provides additional flexibility when subjects are particularly distant.

• With the RF 1.4x Extender, the lens becomes a 560mm f/4

• With the RF 2x Extender, the lens becomes an 800mm f/5.6

This makes it possible to increase reach while retaining autofocus, image stabilisation and excellent optical performance.

Close Focusing for Added Flexibility

Despite its long focal length, the lens can focus as close as 2.5 metres. This provides greater framing flexibility when photographing nearby wildlife, trackside action and tightly cropped details.

Ideal For

• Wildlife and bird photography

• Professional sports photography

• Motorsports and aviation

• News and documentary work

• Low-light action photography

• Distant subjects requiring strong background separation

Specifications

What’s in the Box?

• Canon RF 400mm F2.8L IS USM lens

• E-180E lens cap

• ET-155 (WIII) lens hood

• LS400 soft lens case

• RF lens dust cap