Canon introduces the EF 16-35mm f/2.8L USM, developed to succeed the EF 17-35mm f/2.8L USM, the EF 16-35mm f/2.8L USM has the leading wide-angle range in its class. Due to the proliferation of digital SLR Camera's that tend to have a smaller frame size when compared to the 35mm, there is a demand for shorter focal length lenses, and this has resulted in the development of the EF 16-35mm f/2.8L USM.
This is the first EF lens to have three types of aspherical elements (ground, replicated and Gmo [glass molded]) which effectively correct the lens aberrations which occur during zooming and despite its longer zoom range the EF16-35mm f/2.8L USM obtains a higher image quality than any other lens in its class say Canon.
The EF 16-35mm f/2.8L USM has two UD (Ultra-low Dispersion) elements, which effectively correct the chromatic differences of magnification prone to occur in wide-angle lenses. As a result, there is barely any colour bleeding along the edges of a subject and the image resolution and contrast are high. The inner focusing and ring USM (Ultra Sonic motor) ensure silent and high speed AF operation and the newly-developed, circular diaphragm combines with the fast lens to give better background blur.
By increasing the focusing group's power, a minimum focusing distance of 0.28mm at all zoom focal lengths is attained. Since the front lens element does not rotate during focusing, the effect of a circular polarising filter, attached to the lens, is retained during focusing and zooming. The lens mount, switch panel, zoom ring and focusing ring have been outfitted for water and dust-resistance making this lens suitable for even the harshest environments. A drop-in, gelatin filter holder is provided at the rear of the lens.
Like the EF 70-200mm f/2.8 IS USM, this lens incorporates a new EMD featuring a circular diaphragm. The circular diaphragm maintains a near-circle opening at large apertures which makes blurred points of light look round and makes background blur look better. The diaphragm opening forms a near circle at apertures from f/2.8 to f/5.6. Whilst a secondary diaphragm cuts out unwanted light to help improve the image contrast.
The EF16-35mm f/2.8L IS USM comes with a large number of accessories including the petal-shaped, two-lug, bayonet-type Hood EW-83E which is easier to attach and more durable. It is compatible with the Extension Tube EF12 and can be used with the 77mm closeup lens 500/500D at the telephoto end.
The EF16-35mm f/2.8L IS USM is available from the beginning of November for 1550.