Top features: - Smooth defocusing for more natural bokeh - Refined optical performance with superior contrast and resolution - Silent autofocus using the Smooth Autofocus Motor Smooth defocusing for more natural bokeh The DT 55-200 mm f/4-5.6 SAM IIfeatures a nine-bladed circular aperture instead of the standard polygon-shaped lens aperture. This allows for a more natural bokeh effect, blurring the background for distinctive images. Refined optical performance with superior contrast and resolution Ideal for shooting sports, wildlife and travel, the SAL55200-2has Extra-low Dispersion (ED) glass elements to provide impressive contrast, resolution and colour fidelity throughout the image.Even when you use large aperture settings, you can be confident of capturing clear and memorable images. Silent autofocus using the Smooth Autofocus Motor You can use both manual and autofocus to capture the details using the DT 55-200 mm. With a Smooth Autofocus Motor (SAM) built into the lens, you can enjoy smooth and silent autofocus, leaving you to concentrate on the image itself.