Super Multi-Layer Coating
The Super Multi-Layer Coating reduces flare and ghosting as well as providing sharp and high contrast images throughout the entire zoom range.
Sigma's own unique OS (Optical Stabilizer) technology
The lens is equipped with Sigma’s own unique OS (Optical Stabilizer) function. The OS function offers superior stabilization.
With Optical Stabilizer
No Optical Stabilizer
Fast and quiet AF
The lens incorporates HSM (Hyper Sonic motor), ensuring fast and quiet AF.
Rounded diaphragm
This lens has rounded 7 blade diaphragm which creates an attractive bokeh to the out of focus area of the image.
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FLD ("F" Low Dispersion) glass elements
Two FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, compensate for color aberration. In addition, two glass mold elements and one hybrid aspherical lens give excellent correction for field curvature and astigmatism. High definition images are ensured throughout the entire zoom range.
Superior peripheral brightness
This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures.
F2.8 Large aperture throughout the entire zoom range
The large aperture provides a bright viewfinder image, helping the photographer confirm accurate focusing. It is also ideal for emphasizing the subject by creating a natural, blurred background and allowing the use of fast shutter speeds.
Minimum focusing distance of 28cm, Maximum magnification ratio 1:5
Offering minimum forcusing distance of 28cm throughout the zoom range and maximum magnification of 1:5. Allows close up photography.
Covering a wide range of focal lengths from 17mm
This lens covers a wide range of focal lengths from 17mm and has an equivalent angle of view of a 25.5-75mm with a 35mm SLR camera. It is ideal for portraits, landscapes and general photography.
* The angle of view varies depending on which camera the lens is mounted on.
Compact construction
The lens has a compact construction with a diameter of 83.5mm, overall length of 91.8mm and weight of 565g. This compact and lightweight construction makes it ideal for travel photography.
Inner focusing system
The inner focusing system eliminates front lens ration, making the lens particularly suitable for using the supplied petal-type hood and circular polarizing filters.
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