Canon RF 800mm F5.6 L IS USM Lens Review

The Canon RF 800mm F5.6 L IS USM Lens is a fantastic piece of engineering that was developed to fulfill the demands of experienced amateur photographers and professional photographers who specialize in long-distance photography of subjects such as wildlife, sports, and other subjects.

This lens provides great performance and image quality because of its remarkable focal length, sophisticated autofocus technology, and image stabilization features. Because of its sturdy construction, user-friendly handling, and ergonomic design, it is a dependable partner for photographers working in difficult shooting situations. Let’s investigate more deeply the myriad of facets that make up this lens in order to comprehend its qualities and advantages.

$16,999.00 3 used from $15,244.95 5 new from $16,999.00
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Canon RF800mm F5.6 L is USM

Key Specs

  • Focal Length: 800mm
  • Maximum Aperture: f/5.6
  • Minimum Aperture: f/64
  • Lens Mount Type: RF Mount, metal
  • Compatible Cameras: Canon EOS R-series
  • Minimum Focusing Distance: 2.6 m / 8.53 ft.
  • Maximum Magnification: 0.34x
  • Field of View, at Minimum Focus Distance: Approx. 206 mm x 138 mm / 8.1 x 5.4 in.
  • Angle of View (Diagonal): 03° 05


Outstanding performance is delivered by the Canon RF 800mm F5.6 L IS USM Lens, which ensures that photos are crisp and clear even when captured at great distances. Because it has a fixed aperture of F5.6, it has an outstanding capability of collecting light, which results in photos that are brilliant and lively.

This lens makes use of Canon’s cutting-edge optics, such as its Super UD and fluorite lens components, to reduce the appearance of chromatic aberrations while simultaneously improving image clarity and contrast. The lens also has Canon’s Air Sphere Coating, which considerably lowers the amount of ghosting and flare produced by reflections, resulting in an image quality that is significantly higher than that of comparable lenses.

Autofocus System

This lens is equipped with an advanced autofocus mechanism that consists of a high-speed ring-type USM (Ultrasonic Motor) as well as Dual Nano USM motors. This design offers a rapid focusing performance that is accurate and quiet, making it perfect for photographing subjects that are moving quickly.

Because it follows subjects without causing any disruptions, the autofocus mechanism gives photographers the assurance they need to seize important moments. In addition, there is a focus limiter option on the lens, which enables users to select a certain focus range for even quicker autofocus acquisition.

Vibration Reduction

Because it is outfitted with Canon’s cutting-edge Optical Image Stabilization (IS) technology, the RF 800mm F5.6 L IS USM Lens efficiently eliminates camera shaking, which is especially beneficial while shooting handheld or in low-light environments.

The built-in image stabilization feature offers up to four stops of image stabilization, which enables photographers to take clear photographs at slower shutter speeds without sacrificing the quality of the images they record. When photographing distant subjects or using the lens in physically taxing settings where a tripod would not be practicable, this function proves to be quite useful.

Build Quality

In order for the RF 800mm F5.6 L IS USM Lens from Canon to be able to survive the rigors of difficult shooting settings, Canon developed the lens with the professional-grade build quality. It is protected from dust and moisture thanks to its sturdy design that is weather-sealed, which also ensures that it will function reliably even in difficult situations.

In addition to this, fluorine coatings have been applied to the front and back lens components of the lens, which makes them resistant to fingerprints and easy to clean. As a result of the high build quality, photographers gain self-assurance, which enables them to concentrate on capturing their subjects without being distracted by concerns about the lens’s longevity.

Handling and Ergonomics

The lens has an ergonomic design, with settings that are conveniently located and a grip that is easy to use, which makes taking photographs with it a pleasurable experience even when used for lengthy periods of time. It has control rings that may be programmed to perform a variety of functions, such as aperture control, exposure correction, or ISO changes, according to the preferences of the user.

Additionally, the lens comes with a tripod collar that rotates and has a foot that can be removed, making it possible to transition between horizontal and vertical positions with ease. These intelligent design components add to the general usefulness and simplicity of holding of the lens, which makes it a flexible tool for photographers to use when working in the field.

Image Stabilization

Because it is equipped with Canon’s Optical Image Stabilization (IS) technology, the RF 800mm F5.6 L IS USM Lens gives photographers the ability to take clear shots even while working in difficult lighting circumstances. Because the built-in IS mitigates the effects of camera wobble, particularly when working with longer focal lengths, photographers are able to make advantage of slower shutter speeds without sacrificing the quality of their images.

This function is very helpful when shooting handheld or in other situations when using a tripod would be impractical. When used in conjunction with a camera from Canon’s EOS R series, which offers extra stabilization modes and synergy with the lens’s image stabilization technology, the image stabilization capabilities of the lens can be improved even further.

Shooting Experience

The RF 800mm F5.6 L IS USM Lens provides an outstanding shooting experience as a result of its highly developed autofocus mechanism, fully programmable settings, and user-friendly design. Because the autofocus of the lens is quick, precise, and consistent, it is well suited for photographing subjects that are moving quickly and in a variety of settings.

Photographers are able to make adjustments without taking their eyes off the viewfinder thanks to the fully configurable control rings that enable fast access to the most important settings on the camera. Because of its comfortable grip and ergonomic design, the lens can be held steadily for extended periods of time by the photographer, therefore minimizing the amount of weariness they experience during tough assignments. This lens, with its outstanding focal length and image stabilization capabilities, paves the way for new creative possibilities for photographers by providing them with the tools necessary to easily take spectacular photographs of subjects that are located at a greater distance.

Image Quality

Because of its cutting-edge optical design and very high-grade lens components, the RF 800mm F5.6 L IS USM Lens is capable of producing images of exceptional quality. This lens has elements that efficiently limit chromatic aberrations and offer outstanding color accuracy and contrast. These elements are Super UD and fluorite, and they are integrated into the lens. Because the Air Sphere Coating suppresses ghosting and flare to an even greater extent, the resulting images have an extraordinary level of clarity and sharpness.

A narrow depth of field and smooth out-of-focus regions are made possible by the lens’s wide maximum aperture, which is responsible for the stunning bokeh that the lens imparts on the photographs it captures. Photographers can depend on the RF 800mm F5.6 L IS USM Lens to offer exceptional image quality that satisfies professional standards, whether they are photographing distant objects like as wildlife, sports, or other subjects that are further away.

Teleconverter Compatibility

It is possible to extend the versatility and range of the RF 800mm F5.6 L IS USM Lens by using any of Canon’s RF teleconverters, which are compatible with this lens. When used in conjunction with a teleconverter, such as the RF 1.4x or RF 2x, the lens’s focal length may be successfully extended while retaining great picture quality.

The teleconverters are designed to fit faultlessly with the lens, giving photographers an even greater reach for photographing things that are further away. It is important to note that the usage of teleconverters may result in a somewhat smaller maximum aperture as well as slower focusing performance, yet, the image quality as a whole continues to be remarkable.

Comparison with Competitors

The Canon RF 800mm F5.6 L IS USM Lens stands out as a leading competitor in the category of super-telephoto lenses. Photographers that specialize in wildlife, sports, or other long-distance subjects will find this lens to be a very useful tool due to its focal length, high build quality, and image stabilization features. When compared to its rivals, the RF 800mm F5.6 L IS USM Lens provides superior optical performance. It is capable of producing photos that are crisp and clear, even when shooting at extremely long range.

Because the focusing technology of the lens is both quick and precise, it enables photographers to take pictures of subjects that are moving quickly easily. The image stabilization mechanism is effective, reducing the amount of shaking produced by the camera and making it possible to shoot handheld in a variety of environments. In addition, the lens’s versatility is increased by the fact that it is compatible with Canon’s whole lineup of RF teleconverters. This gives photographers the ability to make their shots farther distant when the situation calls for it.


Focal Length800mm
Maximum Aperturef/5.6
Minimum Aperturef/64
Lens Mount TypeRF Mount, metal
Compatible CamerasCanon EOS R-series
Minimum Focusing Distance2.6 m / 8.53 ft.
Maximum Magnification0.34x
Field of ViewApprox. 206 mm x 138 mm / 8.1 x 5.4 in.
Angle of View (Diagonal)03° 05

Pros and Cons


  • Incredible focus length for photographing things in the far distance.
  • Innovative autofocus technology that allows for quick and precise topic tracking.
  • Handheld photography benefits from effective picture stabilization.
  • Strong construction quality with weather-sealing to ensure long-term use.
  • Comfortable handling and ergonomic design.
  • Outstanding image quality with a significant reduction in aberrations.
  • Increase your camera’s flexibility by making it compatible with Canon’s RF teleconverters.


  • Because of its size and weight, the lens requires additional support in order to be used for a prolonged period of time.
  • Due to its high price point, it is best suited for use by professional photographers as an investment.
  • When employing teleconverters, the maximum aperture will be smaller.
  • When using a teleconverter, the performance of the autofocus may be slightly slowed down.

Price and Availability

The Canon RF 800mm F5.6 L IS USM Lens is a high-end lens that comes with a price tag that is commensurate with its level of quality. When it was first made available, the lens had a price tag of [insert current price here], and it could be purchased via authorized Canon merchants as well as internet outlets.

Because of the specialized nature of the product and its restricted manufacture of it, availability may vary; thus, it is best to check with merchants to determine stock levels and expected delivery times.

$16,999.00 3 used from $15,244.95 5 new from $16,999.00
in stock
Canon RF800mm F5.6 L is USM


Photographers who need a long focal length and superior picture quality may find the Canon RF 800mm F5.6 L IS USM Lens to be an excellent choice. Because of its excellent performance, sophisticated focusing mechanism, and highly efficient image stabilization, it is an instrument that can be relied upon to capture distant subjects with pinpoint accuracy.

Even while working in difficult conditions, photography with this lens is more enjoyable because to its high build quality and user-friendly design. Even though it may come with a hefty price tag and the requirement for extra support during extended usage, the RF 800mm F5.6 L IS USM Lens delivers features and image quality that are suitable for professional photographers, which justifies the expenditure for those photographers who take their craft seriously.

Canon RF 800mm F5.6 L IS USM Lens FAQs

Q. Is the Canon RF 800mm F5.6 L IS USM Lens suitable for handheld shooting?
A. While the lens does feature image stabilization, shooting handheld with an 800mm focal length can be challenging. It is recommended to use additional support, such as a tripod or monopod, for optimal stability and to minimize camera shake.
Q. Can the Canon RF 800mm F5.6 L IS USM Lens be used with teleconverters?
A. Yes, the lens is compatible with Canon’s range of RF teleconverters. By using a teleconverter, such as the RF 1.4x or RF 2x, photographers can extend the lens’s focal length while maintaining image quality. However, it’s important to note that using teleconverters may result in a slightly reduced maximum aperture and potentially slower autofocus performance.
Q. Is the Canon RF 800mm F5.6 L IS USM Lens weather-sealed?
A. Yes, the lens features a robust weather-sealed construction, protecting it against dust and moisture. This makes it suitable for use in various outdoor shooting conditions, including challenging weather environments.
Q. What is the field of view of the Canon RF 800mm F5.6 L IS USM Lens at its minimum focusing distance?
A. At the lens’s minimum focusing distance of 2.6m / 8.53 ft., the field of view is approximately 206mm x 138mm or 8.1 x 5.4 inches. This means that you can capture a relatively small area in detail when shooting at close distances.
Q. Does the Canon RF 800mm F5.6 L IS USM Lens have a focus limiter switch?
A. No, the Canon RF 800mm F5.6 L IS USM Lens does not have a focus limiter switch. However, the lens’s advanced autofocus system performs efficiently and tracks subjects seamlessly, providing fast and accurate autofocus performance even without a focus limit switch.


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