Canon Ultrasonic EF70-200mm f 2.8L IS III USM Instruction Manual

Canon Ultrasonic EF70-200mm f 2.8L IS III USM manual cover

Pages 19

Year 2018

Language(s)

of 19

Canon Ultrasonic EF70-200mm f 2.8L IS III USM Specification

The Canon Ultrasonic EF70-200mm f/2.8L IS III USM Lens is a professional-grade telephoto zoom lens designed for Canon's full-frame and APS-C DSLR cameras. It features a versatile focal length range of 70-200mm, making it ideal for sports, wildlife, portrait, and event photography. The lens boasts a constant maximum aperture of f/2.8, ensuring exceptional performance in low-light conditions and providing a shallow depth of field for subject isolation and creative effects.

Optically, the lens incorporates one fluorite element and five UD (Ultra-low Dispersion) elements to minimize chromatic aberrations and color fringing, resulting in outstanding image clarity and sharpness throughout the zoom range. The Super Spectra coating reduces flare and ghosting, enhancing contrast and color fidelity in challenging lighting conditions. The lens also features Canon's renowned Air Sphere Coating (ASC) for improved anti-reflective performance.

For image stabilization, the Canon EF70-200mm f/2.8L IS III USM includes a robust Optical Image Stabilizer that offers up to 3.5 stops of shake correction, enabling handheld shooting with greater confidence. The ultrasonic motor (USM) provides fast, precise, and nearly silent autofocus, while full-time manual focus allows for fine-tuning without switching modes.

The lens is built to Canon's L-series standards, known for their durability and reliability. It features a weather-sealed construction, protecting it against dust and moisture, making it suitable for use in diverse shooting environments. The lens has a minimum focusing distance of 1.2 meters and a maximum magnification of 0.21x, allowing for close-up photography. The Canon EF70-200mm f/2.8L IS III USM is an essential tool for professionals seeking high performance and versatility in a telephoto zoom lens.

Canon Ultrasonic EF70-200mm f 2.8L IS III USM F.A.Q.

How do I clean the Canon Ultrasonic EF70-200mm f/2.8L IS III USM Lens?

To clean the lens, use a soft, lint-free cloth with a few drops of lens cleaning solution. Gently wipe the lens in a circular motion to remove smudges and dust. Avoid using rough materials or excessive pressure.

What should I do if the autofocus is not working correctly on my Canon EF70-200mm lens?

First, make sure the lens is correctly attached to the camera body. Check if the autofocus switch on the lens is set to 'AF.' Clean the lens and camera contacts with a dry cloth. If the problem persists, a firmware update or service may be required.

Can the Canon EF70-200mm f/2.8L IS III USM Lens be used in low-light conditions?

Yes, the lens has a wide aperture of f/2.8, which allows more light to enter, making it suitable for low-light photography. Additionally, the Image Stabilization feature helps reduce camera shake.

How do I enable Image Stabilization on the Canon EF70-200mm f/2.8L IS III USM Lens?

To enable Image Stabilization, ensure the IS switch on the lens is set to 'ON.' This feature helps to reduce vibration and camera shake, especially useful in low-light conditions or at longer focal lengths.

What is the minimum focusing distance of the Canon EF70-200mm f/2.8L IS III USM Lens?

The minimum focusing distance of the Canon EF70-200mm f/2.8L IS III USM Lens is approximately 1.2 meters (3.9 feet), allowing for close-up shots with excellent detail.

How can I reduce chromatic aberration when using the Canon EF70-200mm f/2.8L IS III USM Lens?

To reduce chromatic aberration, ensure your camera's lens aberration correction feature is enabled. Additionally, stop down the aperture slightly, as shooting at maximum aperture can increase the likelihood of chromatic aberration.

What is the best way to store the Canon EF70-200mm f/2.8L IS III USM Lens when not in use?

Store the lens in a cool, dry place inside its protective case or a padded camera bag. Use silica gel packs to absorb moisture and prevent mold. Keep the lens cap and rear cap on to protect the glass elements.

How do I update the firmware of my Canon EF70-200mm f/2.8L IS III USM Lens?

Lens firmware updates are generally performed through compatible camera bodies. Check the Canon website for any available firmware updates for your camera that may affect lens performance. Follow the camera's instructions for updating firmware.

Is the Canon EF70-200mm f/2.8L IS III USM Lens weather-sealed?

Yes, the Canon EF70-200mm f/2.8L IS III USM Lens features weather-sealing, providing resistance against dust and moisture. However, it is recommended to use a rain cover in extreme weather conditions for additional protection.

What are some common issues with the Canon EF70-200mm f/2.8L IS III USM Lens and how can they be resolved?

Common issues include autofocus errors, lens creep, and image stabilization problems. These can often be resolved by cleaning contacts, ensuring proper settings, and performing a reset by removing and reattaching the lens. If problems persist, professional servicing may be necessary.