Canon Ultrasonic EF16-35mm f 4L IS USM Instruction Manual

Canon Ultrasonic EF16-35mm f 4L IS USM manual cover
Pages 14
Year 2014
Language(s)
English en

Canon Ultrasonic EF16-35mm f 4L IS USM Specification

The Canon Ultrasonic EF16-35mm f/4L IS USM Lens is a high-performance wide-angle zoom lens designed for professional photographers and advanced enthusiasts. Built with precision and durability, it features a robust construction that is resistant to dust and water, making it suitable for challenging environments. The lens offers a focal length range of 16-35mm, providing versatile wide-angle perspectives that are ideal for landscape, architecture, and interior photography. With a constant maximum aperture of f/4, it ensures consistent exposure across the zoom range while delivering excellent low-light performance.

The lens incorporates Canon's advanced optical technologies, including an Image Stabilization system that provides up to four stops of correction, reducing camera shake and enabling sharper handheld shots. It uses an Ultrasonic Motor (USM) for fast, smooth, and silent autofocus, which is essential for both still photography and video recording. The optical design includes three aspherical elements and two Ultra Low Dispersion (UD) elements that minimize chromatic aberrations and distortions, ensuring high image clarity and color fidelity.

A Super Spectra coating reduces flare and ghosting, resulting in enhanced contrast and color neutrality. The lens design also allows for full-time manual focus override, providing photographers with greater control over their compositions. Weighing approximately 615 grams and measuring 82.6mm in diameter and 112.8mm in length, the lens is compact and portable. Compatible with all Canon EF-mount cameras, the Canon EF16-35mm f/4L IS USM Lens is an essential tool for photographers seeking superior image quality and reliable performance in a wide-angle lens.

Canon Ultrasonic EF16-35mm f 4L IS USM F.A.Q.

What are the key features of the Canon Ultrasonic EF16-35mm f/4L IS USM Lens?

The Canon EF16-35mm f/4L IS USM Lens features a constant f/4 aperture, image stabilization, a weather-sealed body, and a high-quality optical design with three aspherical elements and two UD elements to reduce chromatic aberrations.

How do I enable Image Stabilization on the Canon EF16-35mm f/4L IS USM Lens?

To enable Image Stabilization, locate the IS switch on the side of the lens barrel and slide it to the 'ON' position. This helps reduce camera shake for sharper images.

What should I do if the autofocus function is not working properly?

Check if the AF/MF switch on the lens is set to 'AF'. Ensure the camera body is set to the correct autofocus mode and clean the lens and camera contacts. If issues persist, consider resetting the camera settings or consulting Canon support.

How can I clean the front element of the Canon EF16-35mm f/4L IS USM Lens?

Use a blower to remove dust, then gently clean the lens with a microfiber cloth or lens cleaning tissue. If necessary, apply a small amount of lens cleaning solution to the cloth, not directly to the lens.

Can I use filters with the Canon EF16-35mm f/4L IS USM Lens?

Yes, the lens has a 77mm filter thread, allowing the use of various filters such as UV, polarizing, and ND filters to enhance image quality and protect the lens.

How do I know if the lens is properly mounted on my camera?

Align the red dot on the lens with the red dot on the camera mount, then rotate the lens clockwise until it clicks into place, indicating a secure mount.

What are common signs of lens fungus and how can I prevent it?

Signs of lens fungus include spots or web-like patterns inside the lens. To prevent fungus, store the lens in a dry place with a silica gel pack to absorb moisture. Regularly inspect and clean your lens.

Is the Canon EF16-35mm f/4L IS USM Lens compatible with full-frame and APS-C cameras?

Yes, the lens is designed for full-frame Canon DSLRs but is also compatible with APS-C models, where it provides an equivalent focal length of approximately 26-56mm.

How often should I service my Canon EF16-35mm f/4L IS USM Lens?

Regular maintenance depends on usage conditions. For professional use, consider servicing it annually. For casual use, service every 2-3 years or if you notice performance issues.

What is the minimum focusing distance of the Canon EF16-35mm f/4L IS USM Lens?

The minimum focusing distance is approximately 0.92 feet (28 cm), allowing you to capture detailed close-up images while maintaining a wide field of view.