Canon EF 16-35mm f/2.8L II USM Lens features 3 high-precision aspherical lens elements, each of a different type: ground, replica and GMo for even better image quality than the original EF 16-35mm f/2.8L USM. The circular aperture produces a beautiful and natural background blur when shooting at wider apertures.
Other features include internal focusing, a ring type USM (Ultra Sonic Monitor), and new AF algorithms for fast and quiet autofocusing.
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Comments about Canon Canon 16-35MM EF F/2.8L II USM Zoom Lens:
This is a terrific wide lens that allows you so to have a sharp focus a great background and most important no distortions.