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Top features Ideal for macro photography with a minimum focusing distance of 22 cm Range of special elements deliver impressive image quality OS Optical Stabiliser compensates for camera shake Large maximum aperture of f2.8 Ideal for macro photography with a minimum focusing distance of 22 cm The 17 70 mm f2.8 4 DC HSM has a minimum focusing distance of 22 cm and a maximum magnification ratio of 12.8, making it ideal for macro photography. Without the need to change lens, you can take close up pictures of subjects with a clear field of view. Its compact design features durable parts with smaller zoom rings and scale rings. 30% smaller than Sigma's conventional models, the lens incorporates rubber for the attachment part of the provided lens hood. Range of special elements deliver impressive image quality With two FLD F Low Dispersion glass elements, an SLD Special Low Dispersion glass element and three aspherical glass lenses, the 17 70 mm f2.8 4 DC HSM helps you to achieve professional quality images. Chromatic aberration of magnification and axial chromatic aberration are corrected, allowing you to achieve impressive image quality throughout the entire zoom range. OS Optical Stabiliser compensates for camera shake The lens includes Sigma's unique OS Optical Stabiliser function which offers effective correction of approximately four stops, allowing you to compensate for camera shake. This can be achieved in macro range photography, offering you greater control for memorable images. Flare and ghosting are reduced by the Super Multi Layer coating which provides sharp, high contrast images even in backlit conditions. Large maximum aperture of f2.8 At the wide end, the lens offers a maximum aperture of f2.8 while at the telephoto end you can achieve f4. A bright viewfinder assists with focusing and the composition of images, while fast shutter speeds prevent an object from being blurred and ensuring smooth bokeh in the background.
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