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RF800mm F11 IS STM

Super Telephoto

Item Code: 3987C002AA


First Compact and Lightweight 800mm Super Telephoto RF Lens

The RF800mm F11 IS STM Lens is the first 800mm super-telephoto in the RF lens lineup and is more portable than its EF counterparts in this category because of its design advantage. The 800mm range provides a far reach not only in distance to the subject, but also in terms of who can utilize with its affordable price, smaller super-telephoto footprint, and lighter weight.

Excellent Portability made Easier with an Extending/Retracting Locking Lens Barrel Design.

With a design that enables you to retract the lens barrel when not shooting, the lens is even more compact so it can more easily be stored or carried in a bag with additional lenses and accessories. When you’re ready to shoot, just unlock to extend the lens barrel, lock it in place for stability and capture your shots, then unlock, retract, and store again to easily move to your next destination.

Gapless double-layer Diffractive Optics (DO) reduce Chromatic Aberration for High Image Quality

The use of gapless dual-layered diffractive optical elements helps reduce chromatic aberrations so your images are clear and detailed for high-quality results all around. And because one DO lens has the optical characteristics of multiple lenses, this contributes to the lightweight of the lens itself, as well.

High Image Quality at a fixed f/11 Aperture.

Impressive results are always the goal and with the RF800mm lens and its use of diffractive optic elements, chromatic aberration can be virtually cancelled out to achieve clear images with minimal to no color fringing, even at a fixed aperture of F11. This means detailed results of landscapes and more, even from a distance.

Optical Image Stabilization with up to 4 Stops* of Shake Correction.

Steady and clear images aren’t always the easiest to come by, especially when shooting with a super-telephoto lens, but with the powerful image stabilization function in the RF800mm, you can feel far more confident it won’t be an issue. Whether shooting handheld or with a monopod, the built-in IS with up to 4 stops* of shake correction helps to significantly reduce camera shake to stabilize the image and get you the results you want and need.

Lead Screw-type STM enables Smooth Autofocusing for Still-image and Video Shooting.

The use of a lead screw-type STM focus motor means smooth and quiet autofocus can be achieved whether you’re shooting stills or tracking a subject while shooting video. While it’s nice to be near-silent anyway, it’s especially important in instances where you’re trying to capture the flight of a wild bird or the relaxation of a wild animal. With the STM feature of the RF800mm, you can capture the scene while significantly reducing the chance of the subject being disturbed.

Control Ring for Direct Setting Changes.

The RF800mm F11 IS STM has a separate, independent control ring that is located towards the front of the lens, which can be used for immediate exposure adjustments during still and video shooting. With the control ring, you can customize its dial to directly adjust settings such as shutter speed, lens aperture, exposure compensation and ISO. For photographers and moviemakers who would prefer a silent control ring, the clicking mechanism can be removed by a Canon service provider for a fee.

12-pin Communication System.

A 12 pin connection between your EOS R series camera and the lens means communication at a higher speed with larger amounts of data transfer, enabling incredibly fast Autofocus calculations, impressive image stabilization and even Control Ring adjustments.

Compatible with RF1.4x/RF2x Extenders for 1120mm/1600mm

If 800mm isn’t far-reaching enough, the RF800mm lens is compatible with both the RF Extender 1.4x and RF Extender 2x to help get you even closer, up to 1120mm with the 1.4x or 1600mm using the 2x. This added flexibility and versatility helps make the RF800mm an amazing option for your landscape, wildlife, sports photography and more.


Focal Length & Maximum Aperture

800mm, f/11

Minimum Focusing Distance

19.69 ft / 6.0m

Maximum Magnification


Lens Construction

11 elements in 8 groups

Special Elements

Gapless double-layer diffractive optics

Filter Size Diameter


Aperture Blades


IS (CIPA standard correction effect)

4 stops (When using the EOS R)

Minimum Overall Length

When shooting: approx. 13.85 in. / 351.8 mm
When retracted: approx. 11.09 in. / 281.8 mm

Maximum Outer Diameter x Length

Approx. 4 in. x 13.9 in. / 101.6mm x 351.8mm


Approx. 2.77 lbs. / 1260g

RF800mm F11 IS STM Lens

RF 24-70mm F2.8 L IS USM
  • RF800mm F11 IS STM Lens
  • Lens cap E-95

Compatible Supplies & Accessories

Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you RF800mm F11 IS STM that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store



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Sample Images

More Details

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Introducing the Canon RF600mm and RF800 F11 IS STM Lenses

Experience the possibilities with the compact and lightweight RF800mm lens that provides impressive super telephoto ranges, superb detail and depth at F11, comforting image stabilization and more.

Explorer of Light Rick Sammon and the RF800mm F11 IS STM Lens

Learn more about the RF800 super telephoto lens* for the EOS R System from Rick as he ventures out and uses the long range lens to get up close and capture detailed images of birds and wildlife.

*Note: Still images were captured usinga pre-production model of theRF800mm F11 IS STM.

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MTF Charts

A Modulation Transfer Function (MTF) chart measures a lens’ expected optical performance at the center of the picture area and measures repeatedly along the diagonal line, further and further toward the corners of the image. The higher a curve is shown on the chart, the better the lens is performing in the area the chart is measuring. As a curve moves from left to right, it displays the lens' results from center towards the corners.

For more information on understanding how to read Canon Lens MTF charts, please click here.


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^ May lose AF functionality.
*Based on CIPA (Camera & Imaging Products Association) standards. Testing performed using the EOS R camera.

† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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