The EF 70–200mm f/2.8L IS III USM lens features an incredibly bright zoom with an f/2.8 maximum aperture that stays constant throughout the zoom range. The EF 70–200mm f/2.8L IS III USM's bright image even enhances AF performance, sending more light to more areas of the AF sensor to help facilitate a faster, more accurate focus. Combined with its 8-blade circular aperture, the EF 70–200mm f/2.8L IS III USM lens is engineered to capture dramatic images with gorgeous background blur.
The addition of Canon's Air Sphere Coating (ASC) enhances the EF 70–200mm f/2.8L IS III USM lens's ability to suppress reflections. ASC helps combat aberrations regardless of focal length or the angle of light. This helps provide cleaner photographs with fewer distracting reflective effects in the image.
For consistently sharp results, the EF 70–200mm f/2.8L IS III USM lens features an Optical Image Stabilizer system that provides shake reduction for up to 3.5 shutter speed stops*. This helps provide reliable handheld performance and clear image detail in low-light situations or at lower ISOs.
* Based on CIPA (Camera & Imaging Products Association) standards. Testing performed at a focal length of 200mm using the EOS-1D X Mark II digital SLR camera.
Built to L-Series lens specifications, the EF 70–200mm f/2.8L IS III USM not only offers optical excellence but has been enhanced with a highly durable design to perform in even the most challenging environments. It delivers a dust- and water-resistant construction with seals around the mount, switches, zoom ring and more.
To help capture every movement of your subject, the EF 70–200mm f/2.8L IS III USM lens features a fast and near-silent AF system. It uses an inner focusing ring USM (ultrasonic motor) system that works with a high-speed CPU and optimized AF algorithms to help deliver precise, lightning-fast performance. For even more refinement, the EF 70–200mm f/2.8L IS III USM offers full-time manual focus as well.
Befitting Canon's L-series lenses, the EF 70–200mm f/2.8L IS III USM lens features a superb optical formula for high-resolution, high-contrast images throughout its zoom range. It consists of 23 lens elements in 19 groups, including one fluorite and five Ultra Dispersion (UD) elements. The result? A lens of great clarity and fidelity that helps render sharp, beautifully detailed images with minimal distortion.
With a minimum focusing distance of approx. 3.9 ft./1.2m, the EF 70–200mm f/2.8L IS III USM lens helps enable operation close to the subject, perfect for intimate portraits, headshots and detail work. For instance, at its minimum focus distance and zoomed to 200mm, the maximum magnification is 0.21x, meaning you can fill the frame with a subject 6.7 x 4.5 in. (approx. 170 x 114mm) in size.