Sigma 17-70mm AF DC Macro F2.8-4.5 Lens For Sony: It is which is designed specially for DSLRs with APS-C sized image sensors. It has an impressive addition to the Sigma Global Vision Contemporary line. This lens features a fast F2.8 maximum aperture to help better control your focus plane and to aid in low-light shooting. It features SLD (Super Low Dispersion) glass element and two aspherical glass elements, provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range.
This lens features a maximum magnification of 1:2.3 and a minimum focus distance of 20cm enables close-up photography like a macro lens. The lens design incorporates an inner focusing system, which ensures fast AF speed as well as prevents the front of the lens rotating, making it particularly suitable for use with circular polarizing filters and petal shaped lens hoods.
By utilizing an optimized distribution of optical and electronic elements, the size of the lens barrel is able to be reduced. A multi-layer coating is also applied to lens surfaces to reduce the appearance of lens flare and ghosting, which helps to maintain image contrast and color fidelity when working in strong lighting conditions.
A large maximum aperture of F2.8-4.5 helps with low-light photography and also offers greater control over your focus plane for selective focus shooting. A brass bayonet mount provides reinforced durability at the connection point between the lens and your camera.
Specifications: Sigma 17-70mm F2.8-4.5 DC Macro AF Lens For Sony
Maximum Magnification 1:3
Minimum Focusing Distance 20 cm/ 7.9 inch
Lens Type Zoom
Angle/View 72.40° - 20.20°
Diaphragm Blade (s) 7_Blade_(s)
Minimum Aperture F22
Filter Size 72 mm
Dimensions (D x L) 79_mm x 82.5_mm
Internal Focus System (IFS) Yes
Lens Coating Special Lens coating
Lens Hood Petal Type Lens Hood
SLD Lens (Special Low Dispersion) Yes
Weight -Sigma 17-70mm F/2.8-4.5 Lens 455 g / 16.0 oz
Lens Fitting Sony AF
Lens Focal Range Wide Angle Lens
Focus-Sigma 17-70mm Lens Auto Focus AF
Macro-Sigma 17-70mm F2.8/4.5 Lens Yes
Kit Contents: Sigma 17-70mm F2.8-4.5 DC Macro AF Lens For Sony Sigma lh780-03 lens Hood Sigma Front and rear caps Sigma user Guide
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