Product Code: 592969
Superb build quality with exceptional attention to detail that provides an exceptional user experience
With priority given to optimal portability, the body of the SIGMA 28-70mm F2.8 DG DN | Contemporary consists primarily of lightweight parts. While conventional wisdom states that it is more difficult to ensure processing accuracy for plastic parts than metal parts, there has been no compromise whatsoever on build quality for the 28-70mm F2.8 DG DN | Contemporary.
One reason for this is that it uses a type of polycarbonate called TSC (Thermally Stable Composite), which has a comparable level of thermal shrinkage to aluminum. This helps reduce differences between the thermal shrinkage of the metal and non-metal parts, ensuring stable levels of performance even in an environment with extreme temperature changes.
The use of polycarbonates in the construction of zoom and focus rings can make their operation feel less premium, but with careful treatment to the precision of these parts and adjusting the movement with the lubricant appropriately, the rings offer a precise action with an exceptionally high-quality feel.
The SIGMA 28-70mm F2.8 DG DN | Contemporary offers a new and improved photographic experience for mirrorless users who require a fast aperture standard zoom lens. Its premium, intuitive build makes it as exciting to use the lens as it is to see the incredible images it can produce, inspiring you to start achieving your creative potential.
High-performance, yet compact and lightweight — a true all-round lens
Featuring the very latest technology, and combining optical performance with compactness, the high-performance Contemporary line covers a wide range of needs.
|Lens Construction||12 groups, 16 elements (2 FLD elements, 2 SLD elements, 3 aspherical elements)|
|Angle of View||75.4°~34.3°|
|Number of Diaphragm Blades||9 (rounded diaphragm)|
|Minimum Focusing Distance||19 (W)-38 (T)cm / 7.5(W)-15 (T)in.|
|Maximum Magnification Ratio||1:3.3 (W) - 1:4.6 (T)|
|Dimensions (Diameter × Length)||φ72.2mm×101.5mm / φ2.8in.×4.0in.|
|Weight||470g / 16.6oz.|