Canon RF 400mm f/2.8 L IS USM Lens

The Canon RF 400mm F2.8 L IS USM is a super-telephoto prime built for EOS R-series shooters who need serious reach without a lens that fights back. It carries over the optical design of Canon's well-regarded EF 400mm f/2.8L IS III, so it's aimed at sports, wildlife, and action photographers already familiar with that lineage. Built-in stabilization and weather-sealed L-series construction make it dependable handheld, on a monopod, or in rough conditions.

• Inherited EF optics: Uses the same optical design as the EF 400mm f/2.8L IS III USM, delivering the sharpness and contrast Canon shooters already trust.
• Up to 5.5 stops of stabilization: Three IS modes correct for handheld shake, panning, and shutter-only stabilization.
• Close focus for a super-tele: Focuses down to about 8.2 ft / 2.5m, letting you fill the frame tighter than most 400mm lenses allow.
• SSC and ASC coatings: Super Spectra and Air Sphere coatings cut ghosting and flare in harsh backlight.
• RF extender compatible: Works with the RF 1.4x and 2x Extenders for effective reach up to 800mm at f/5.6.
• Customizable manual focus: Three manual focus speed settings on the electronic focus ring, adjustable even during Servo AF.
• Two focus presets: Instantly recall one of two memorized focus distances with a twist of the playback ring.
• Weather-sealed L-series build: Dust- and water-resistant construction with a fluorine coating on the front element for easy cleanup.

Specifications

• Mount: Canon RF
• Maximum aperture: f/2.8
• Optical design: Same as EF 400mm f/2.8L IS III USM
• Image stabilization: Up to 5.5 stops, 3 IS operation modes
• Minimum focus distance: ~8.20 ft / 2.5m
• Aperture blades: 9, circular
• Extender compatibility: RF 1.4x (560mm at f/4); RF 2x (800mm at f/5.6)
• Coatings: Super Spectra Coating (SSC), Air Sphere Coating (ASC), fluorine front/rear elements
• Focus presets: 2 memorized distances