Sigma 17-70mm f2.8-4.5 DC Macro HSM

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Sigma 17-70mm f2.8-4.5 DC Macro HSM - This lens can be used with wide variety of subjects and it is an ideal large aperture standard zoom lens for digital SLR cameras featuring APS-C size image sensor.   This lens has a minimum focusing distance of 20cm (7.9") throughout the entire zoom range and has a maximum magnification of 1:2.3.

Maximum magnification of 1:2.3 enables close-up photography like a macro lens.   It has a 3cm (1.2") working distance between the lens and subject and it is very convenient for taking close-up pictures.

The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras and also creates an optimum color balance through the entire zoom range.

A Special Low Dispersion (SLD) lens and two aspherical lens elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range.

This lens offers a large aperture of F2.8 at 17mm wide angle and performs superbly even in relatively low light conditions indoors or at dusk.

A zoom lock switch mechanism is provided to prevent the lens from creeping due to its own weight, and to avoid the danger of the lens receiving a shock while it is being carried.

General Note
  • The appearance, specifications, and the like of the product are subject to change for improvement without notice
  • Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras
  • The angle of view depends upon the digital camera being used
  • standard retail price is around $ 580.00 US
Specification
  • Lens Construction: 15 Elements in 12 Groups
  • Angle of View: 79.7 - 22.9 degrees
  • Number of Diaphragm Blades: 7 Blades
  • Minimum Aperture: F22
  • Minimum Focusing Distance: 20cm/7.9 in.
  • Maximum Magnification: 1:2.3
  • Filter Size: Diameter 72mm
  • Dimensions: 79mm x 82.5mm
  • Weight: 490g/17.3 oz
sigma 17-70mm f/2.8-4.5 dc macro hsm