Canon Ultrasonic EF-S15-85mm f 3.5-5.6 IS USM Instruction Manual

Canon Ultrasonic EF-S15-85mm f 3.5-5.6 IS USM manual cover
Pages 13
Year 2009
Language(s)
English en

Canon Ultrasonic EF-S15-85mm f 3.5-5.6 IS USM Specification

The Canon Ultrasonic EF-S15-85mm f/3.5-5.6 IS USM lens is a versatile zoom lens designed for Canon's APS-C format DSLR cameras. It offers a focal length range equivalent to 24-136mm in 35mm format, providing wide-angle to medium telephoto coverage. The lens features an advanced 17-element, 12-group optical construction, incorporating UD and aspherical lens elements to minimize chromatic aberrations and distortions, delivering high-quality images with excellent sharpness and color fidelity. The lens's maximum aperture ranges from f/3.5 at the wide end to f/5.6 at the telephoto end, allowing for good performance in various lighting conditions.

A standout feature of this lens is its Image Stabilization (IS) system, offering up to four stops of shake correction, which is particularly beneficial in low-light situations or when shooting handheld. The Ultrasonic Motor (USM) ensures fast, smooth, and near-silent autofocus, making it suitable for both still photography and video recording. Full-time manual focus override is available, allowing precise control without switching from AF mode.

The lens has a minimum focusing distance of 0.35 meters, enabling close-up shots with a maximum magnification of 0.21x. It is equipped with a circular aperture diaphragm, contributing to pleasing bokeh effects in out-of-focus areas. Compact and well-constructed, the lens measures approximately 81.6mm in diameter and 87.5mm in length, weighing around 575 grams, making it a convenient choice for travel and everyday photography. The Canon EF-S15-85mm f/3.5-5.6 IS USM lens combines flexibility with performance, making it an ideal all-purpose lens for photographers seeking versatility in their shooting.

Canon Ultrasonic EF-S15-85mm f 3.5-5.6 IS USM F.A.Q.

How do I calibrate the focus on my Canon EF-S 15-85mm lens?

To calibrate the focus, use the micro-adjustment feature in your camera settings if available. Alternatively, test focus accuracy at various focal lengths and distances, and consider professional calibration if necessary.

What should I do if my Canon EF-S 15-85mm lens is not autofocusing properly?

Ensure the lens is securely attached, clean the contacts on the lens and camera, and check the AF/MF switch. If issues persist, reset the camera settings or consult Canon support.

How can I clean the Canon EF-S 15-85mm lens to maintain optimal performance?

Use a blower to remove dust, a lens brush for particles, and a microfiber cloth with lens cleaner for smudges. Avoid excessive pressure and moisture.

What are the best camera settings to use with the Canon EF-S 15-85mm lens for landscape photography?

Set your camera to aperture priority mode with an aperture of f/8 to f/11 for optimal sharpness. Use a low ISO setting and a tripod for stability if needed.

How do I update the firmware for the Canon EF-S 15-85mm lens?

Canon lenses do not require firmware updates. Ensure your camera firmware is up-to-date to maintain compatibility and performance.

What are common issues with the image stabilization feature on the Canon EF-S 15-85mm lens?

Common issues include slight blurring or noise. Ensure IS is enabled, and reduce camera shake. If problems persist, disable IS when using a tripod.

Can I use filters with the Canon EF-S 15-85mm lens, and if so, what size?

Yes, you can use filters with this lens. It has a filter thread size of 72 mm. Ensure filters are compatible to avoid vignetting.

How do I prevent lens flare when using the Canon EF-S 15-85mm lens?

Use a lens hood to block stray light, avoid direct sunlight in the frame, or position your hand to shield the lens. Adjust angles to reduce flare.

What is the recommended way to store the Canon EF-S 15-85mm lens to ensure longevity?

Store the lens in a dry, cool place with a dehumidifier if necessary. Keep it in a padded case to protect against dust and impacts.

Can I use the Canon EF-S 15-85mm lens with full-frame cameras?

This lens is designed for APS-C sensor cameras and is not recommended for full-frame cameras due to potential vignetting and reduced sensor coverage.