As rumoured, Canon has just announced a new Canon 24-70mm f/4L IS lens. Most likely, the 24-70mm f/4L IS will be included as a kit option with the upcoming Canon 6d camera. Availability is said to be mid-December 2012.
Canon 24-70mm f/4L IS Press Release:
EF 24-70mm f/4L IS USM – high performance, high flexibility, Hybrid IS
The EF 24-70mm f/4L IS USM is the latest addition to Canon’s elite L-series, and expands the range of standard zoom EF lenses available for both professional and amateur photographers. Ideal for reportage and wedding photography, it combines an essential everyday focal range with a premium quality L-series construction, delivering consistently sharp, professional-quality stills in a range of different situations. A new macro function also optimises the placement of lens groups during macro photography, allowing shooting at a maximum magnification of 0.7x – reducing the need for photographers to carry a dedicated macro lens.
Its first-class optical system includes two aspherical elements alongside two Ultra-low Dispersion (UD) lenses, each with optimised Super Spectra Coatings to minimise chromatic aberration, colour blurring and flare. A constant f/4 aperture throughout the zoom range provides photographers with exceptional creative control, allowing blurring of the background of a scene at all focal lengths. A nine-blade circular iris also assists photographers in making their subjects stand out, delivering beautiful out of focus highlights (bokeh) in the background blur to add atmosphere to a shot.
The EF 24-70mm f/4L IS USM also features a newly designed IS system, delivering blur-free images throughout the zoom range. Canon’s advanced optical IS offers a 4-stop light advantage, while Hybrid IS effectively compensates for angular and shift shake during macro shooting for stable close ups.
Superfast AF performance is provided by a small, ring-type Ultrasonic Motor (USM). Working in combination with a high-performance CPU and advanced AF algorithms, USM technology enables accurate, silent and ultra-responsive autofocusing. Full-time manual focusing also ensures adjustments can be made even when AF is engaged.
The EF 24-70mm f/4L IS USM features a high grade, usability-focused design – both inside and out. The exterior features a high quality leather-texture coating, a revised shape ensures ease-of-use, and the focusing and zoom rings have been designed for optimal operation. Additionally, a dust and drip-proof construction is resistant to dust and moisture, a lock function protects lenses from knocks when travelling, while fluorine coating minimises the amount of dust, dirt and fingerprints that adhere to the front and rear lenses – helping to maintain superior image quality and reduce the need for cleaning.