August 22, 2005
New Canon EF 24-105mm f/4L IS USM Lens
Canon, leader in photographic and imaging technology, is pleased to announce the launch of its latest professional L-series lens: the lightweight EF 24-105mm f/4L IS USM with Image Stabiliser. Dust and moisture resistant and incorporating Canon’s very finest standards of precision optics, the EF 24-105mm f/4L IS USM is designed for reportage, event, travel and celebrity photographers looking for a lightweight and manoeuvrable lens with minimal image quality compromise.
Complementing the EF 17-40mm f/4L USM and EF 70-200mm f/4L USM, the lens completes Canon’s f/4L-series zoom lens range. These lenses are designed for professional photographers requiring a light zoom lens with a fixed aperture throughout the zoom range. For outstanding camera shake reduction, Image Stabiliser allows shutter speeds of 3 stops slower than would otherwise be possible, with no perceptible increase in image blur.
Image Stabiliser (IS) dramatically reduces image blur caused by camera shake. Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane. The 3 stop advantage means that photographers normally shooting a 105mm lens handheld at 1/125 sec can obtain a shake free result with a shutter speed as low as 1/15 sec, for vastly extended options in low light conditions.
The ring-type USM motor found in the EF 24-105mm f/4L IS USM employs ultra-sonic frequency vibrations to drive auto focus with unrivalled speed and near-silent operation. A powerful CPU and improved AF algorithm contribute to speed performance. Good holding torque stops the lens with precision and accuracy, the instant it arrives at the correct focus point and without overshoot. Photographers can choose manual focus instantly and at any time simply by moving the manual focus ring without first having to switch out of auto focus mode.
The EF 24-105mm f/4L IS USM offers the highest possible optical quality with no change in aperture over the full focal range of the lens. This allows photographers to set exposure at the widest aperture and zoom all the way through to 105mm without having to vary the shutter speed. It is the perfect lens for professional photographers looking for a lightweight and extended zoom alternative to its EF 24-70mm f/2.8L USM counterpart. The lens employs an almost perfectly circular barrel aperture, helping create attractive, defocused backgrounds.
Posted by Webmaster at August 22, 2005 09:33 AM
