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The Canon RF 400mm f/2.8 L IS USM is a super-telephoto lens designed exclusively for EOS R-series cameras, offering exceptional optical performance for sports, wildlife, and action photography. Optically identical to the acclaimed EF 400mm f/2.8L IS III USM, it combines a fast f/2.8 aperture with advanced image stabilisation, delivering up to 5.5 stops of shake correction for razor-sharp results even in challenging conditions.

The lens features fluorite and Super UD elements to reduce chromatic aberration, while Air Sphere and Super Spectra coatings minimise flare and ghosting for outstanding clarity. A circular 9-blade aperture ensures beautifully smooth bokeh, while focus presets and a customisable electronic focus ring enhance control. Built to withstand demanding environments, it offers robust dust and water resistance with a protective fluorine coating.

  • 400mm f/2.8 super-telephoto design
  • Up to 5.5 stops optical image stabilisation
  • Fluorite and Super UD elements for clarity
  • 9-blade circular aperture for smooth bokeh
  • Dust and water-resistant build with fluorine coating

Delivering speed, precision, and reliability, the RF 400mm f/2.8 L IS USM is a world-class lens built for uncompromising performance.

Customer Reviews

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C
Clint Ralph
Greatest Lens Ever

This has to be the fastest focus & sharpest lens ever! The focus rate on fast-moving small birds is around 95%. All you have to do is get the subject in the lens and BOOM ... focus locked & a razor-sharp image. In combo with the R5, there is nothing to touch it.

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