Canon EF 600mm f/4L IS III USM Review

The Canon EF 600mm f/4L IS III USM lens is a great piece of gear that was created to fulfill the requirements of wildlife photographers who work professionally. This lens is an excellent option for producing spectacular photographs of distant subjects in a variety of tough environments because of its great optical performance and innovative features.

This lens produces amazing pictures that will put you in a state of astonishment, regardless of whether you are photographing animals, sports, or any other type of fast-paced activity.

$12,999.00 4 used from $10,894.95 6 new from $12,999.00
in stock
Canon EF 600mm f/4L is III USM Lens

Key Specs

  • Focal Length: 600mm
  • Maximum Aperture: f/4
  • Lens Construction: 17 elements in 13 groups
  • Diagonal Angle of View: 4°10′
  • Focus Adjustment: Manual focus
  • Closest Focusing Distance: 13.78 ft. / 4.2m
  • Filter Size: 52mm
  • Dimensions (Max. Diameter x Length): Φ6.6 x 17.6 in.
  • Weight: Approx. 6.73 lbs. / 3050g


When it comes to producing exceptional image quality, the Canon EF 600mm f/4L IS III USM lens is a real workhorse that you should consider purchasing. It has a super-telephoto focal length of 600 millimeters, which enables you to record distant things with an incredible level of detail and sharpness.

The lens is built with state-of-the-art optical components, such as fluorite and super UD glass elements, which help to reduce chromatic aberrations and provide superb color accuracy. In addition to this, the lens has a maximum aperture of f/4, making it possible for you to take photos in low-light settings while still keeping your shutter speed relatively high.

Autofocus System

The EF 600mm f/4L IS III USM lens has Canon’s most sophisticated autofocus mechanism, which enables the lens to provide very quick and accurate focusing performance. The lens is equipped with a ring-type Ultrasonic Motor (USM), which allows for smooth and silent functioning of the autofocus mechanism.

The high-speed central processing unit (CPU) and the optimized algorithms provide speedy subject acquisition and precise tracking, which makes it perfect for shooting fast-moving subjects like sports or wildlife. You are able to make precise changes manually without turning off the autofocus, thanks to the lens’s full-time manual focus override feature.

Vibration Reduction

The outstanding Image Stabilization (IS) technology developed by Canon is incorporated into the EF 600mm f/4L IS III USM lens. This technology aids in reducing camera shake and generating crisper photos, particularly while shooting handheld or in tough settings.

The lens has a 5-stop image stabilization technology built into it, which effectively compensates for undesirable vibrations and enables you to utilize slower shutter speeds without compromising the image quality in any way. While shooting in low-light conditions or while using the lens for lengthy periods of time without the assistance of a tripod, this function proves to be quite helpful.

Build Quality

The EF 600mm f/4L IS III USM lens from Canon boasts an amazing build quality thanks to Canon’s meticulous construction. This ensures that the lens will remain durable and reliable even in the most challenging conditions. The lens is made of a strong magnesium alloy, which allows it to be lightweight while maintaining its structural integrity.

Because it is also weather-sealed, it provides protection against dust and moisture, allowing you to use it without fear in a variety of outdoor environments. Because the front and rear lens elements have a fluorine coating, they are better able to withstand dust, water, and smudges, which makes it much simpler to clean and maintain the lens.

Handling and Ergonomics

Ergonomics were taken into consideration throughout the development of the Canon EF 600mm f/4L IS III USM lens, which results in a more pleasant experience overall for photographers. It has a well-designed grip and a balanced weight distribution, which makes it simple to use and reduces the amount of fatigue experienced over extended periods of shooting.

The lens also has controls that may be customized, such as a focus preset button and a switch that adjusts the focusing distance range. These controls provide easy access to features that are used frequently.

Image Stabilization

By counteracting blur caused by camera shake, the EF 600mm f/4L IS III USM lens, which features upgraded Image Stabilization (IS) technology, produces photos that are noticeably clearer. The 5-stop image stabilization mechanism is quite successful at reducing blur, which can be generated while shooting handheld or from unsteady platforms.

This function is especially helpful when shooting in low-light circumstances or when photographing distant scenes without the use of a tripod. In both of these scenarios, the camera shakes more than usual, which can cause blurry images. The IS system may be modified to accommodate a variety of shooting conditions, including the addition of a specific panning mode that makes it possible to take photos with a smooth tracking motion.

Shooting Experience

A spectacular shooting experience can be had with the Canon EF 600mm f/4L IS III USM lens, which is made possible by its outstanding performance and several cutting-edge features. Even in difficult lighting circumstances, you’ll have no trouble acquiring objects and keeping track of them because of the lens’s quick and precise focusing.

The large maximum aperture of f/4 enables photography to be taken in low-light conditions and produces stunning background blur for the purpose of isolating the subject of the photograph. The lens is also equipped with a variable telephoto reach, which makes it ideal for photographing distant subjects such as animals, sports, and other subjects.

Image Quality

The EF 600mm f/4L IS III USM lens produces exceptional results when it comes to the picture quality it creates. High-quality optics, such as fluorite and super UD glass components, are included in the lens. These elements work together to decrease chromatic aberrations and ensure superb color reproduction efficiently.

In addition, the lens is coated with Canon’s Air Sphere Coating (ASC), which helps to eliminate ghosting and flare produced by reflections. The end result is photos that have exceptional contrast and clarity. This lens produces photos that are dependably clear and detailed, regardless of whether you are shooting with the aperture wide open or stopped down.

Teleconverter Compatibility

The Canon EF 600mm f/4L IS III USM lens is designed to work with the company’s teleconverters, which lengthen the focal length of the lens and increase its overall reach. If you attach a 1.4x teleconverter to the lens, it will turn into an 840mm f/5.6 lens; however, if you attach a 2x teleconverter, it will become a 1200mm f/8 lens.

Because of this versatility, photographers are able to go even closer to the subjects of their photographs without compromising the image quality. When utilizing teleconverters, however, both the maximum aperture and the effectiveness of the autofocus may be significantly diminished. This is something that should be taken into consideration.

Comparison with Competitors

In contrast to other lenses in its class, the Canon EF 600mm f/4L IS III USM lens stands out thanks to its superior optical performance, high-quality construction, and an extensive array of cutting-edge features. The lens makes use of high-quality glass components and coatings, which contribute to the exceptional image quality that it provides.

Its versatility in capturing subjects that are moving quickly is due, in part, to the quick focusing technology and the good picture stabilization. In addition, the weather-sealing and lightweight design of the lens makes it a dependable option for photographers who work in outdoor environments. Even while there may be alternative choices available, the EF 600mm f/4L IS III USM lens unquestionably maintains its position as one of the best selections for both photography pros and photography lovers.


Focal Length600mm
Maximum Aperturef/4
Lens Construction17 elements in 13 groups
Diagonal Angle of View4°10′
Focus AdjustmentManual focus
Closest Focusing Distance13.78 ft. / 4.2m
Filter Size52mm
Max. Diameter x LengthΦ6.6 x 17.6 in., approx. 6.73 lbs.
Φ168.0 x 448.0mm, approx. 3050g

Pros and Cons

There are a lot of benefits that come with using the Canon EF 600mm f/4L IS III USM lens. Because of its outstanding image quality, lightning-fast focusing, and powerful image stabilization, it is a flexible instrument that can capture spectacular photographs of faraway scenes.

The build quality of the lens guarantees that it is durable and reliable, and the ergonomic design of the lens ensures that it is pleasant to handle even during extended periods of photography. The versatility of the lens is further enhanced by the fact that it is compatible with teleconverters, which enable photographers to expand the lens’s focal length and get an even broader range of focus.

Price and Availability

The Canon EF 600mm f/4L IS III USM lens is a high-end lens that comes with a premium price tag due to its level of performance and quality. When it was first made available, the lens had a price tag of [Insert Price], which put it in the more expensive category of telephoto lenses.

The price of the lens accurately reflects both its quality and its capabilities due to the remarkable performance and sophisticated features it possesses. Although the availability of the lens may change from place to region, it can often be purchased through authorized Canon dealers as well as online platforms.

$12,999.00 4 used from $10,894.95 6 new from $12,999.00
in stock
Canon EF 600mm f/4L is III USM Lens


The Canon EF 600mm f/4L IS III USM lens is a premium telephoto lens that excels in performance, image quality, and build quality. It has a focal length of 600 millimeters and a maximum aperture of four. It has excellent optical performance, which guarantees excellent image quality with a low number of aberrations.

Photographers are able to take clear and precise images of things that are moving quickly because of the sophisticated autofocus mechanism and image stabilization technology that this lens possesses. Its weather-sealing and durable design makes it appropriate for use in a variety of challenging outdoor shooting environments.

Canon EF 600mm f/4L IS III USM FAQs

Q. Is the Canon EF 600mm f/4L IS III USM lens compatible with teleconverters?
A. Yes, the lens is compatible with Canon’s teleconverters, allowing you to extend its focal length for even greater reach.
Q. What is the closest focusing distance of the Canon EF 600mm f/4L IS III USM lens?
A. The closest focusing distance of the lens is 13.78 ft. / 4.2m, which allows you to capture detailed close-up shots of subjects.
Q. Does the lens have image stabilization?
A. Yes, the Canon EF 600mm f/4L IS III USM lens features image stabilization (IS) technology, which helps reduce camera shake and produce sharper images, especially when shooting handheld or in challenging conditions.
Q. What is the weight of the Canon EF 600mm f/4L IS III USM lens?
A. The lens weighs approximately 6.73 lbs. / 3050g, making it relatively lightweight considering its focal length and aperture, which enhances portability and ease of use.
Q. Does the lens have an autofocus system?
A. Yes, the lens features Canon’s advanced autofocus system, offering fast and precise focusing performance. It incorporates a ring-type Ultrasonic Motor (USM) for smooth and silent autofocus operation, ideal for capturing fast-moving subjects such as wildlife or sports.


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