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Sigma launch 17-70mm F2.8-4 DC MACRO OS HSM

Large aperture standard zoom lens designed for digital SLR cameras.

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Sigma 17-70mm f/2.8-4 DC Macro OS HSM
The Sigma Corporation announce the new Sigma 17-70mm F2.8-4 DC MACRO OS HSM interchangeable lens sporting a minimum focusing distance of 22cm, Aspherical glass and Hyper Sonic Motor.

Press Release:

The Sigma Corporation is pleased to announce the new Sigma 17-70mm f/2.8-4 DC MACRO OS HSM.

* Minimum focusing distance of 22cm at all focal lengths
* Integrated Optical Stabilisation system
* Aspherical and ELD glass elements
* Large aperture of f/2.8 at the wide angle setting
* Hyper Sonic Moor (HSM) ensuring silent, high-speed AF

This large aperture standard zoom lens offers an aperture of f/2.8 at the 17mm focal length and is ideal for many situations such as portraits, sports, macro and general photography. The OS (Optical Stabiliser) function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an anti-shake function. As the compensation for camera shake is visible in the view-finder, the photographer can easily check for accurate focus and ensure there is no subject movement. The maximum aperture of f/2.8 produces an attractive background blur and improves autofocus speed.

This lens has a minimum focusing distance of 22cm (8.6 inches) throughout the entire zoom range and maximum magnification ratio of 1:2.7, making it ideal for close-up photography. It is possible to focus as close as approximately 4.7cm from the tip of the lens to the subject making this lens particularly useful for close-up photography.

Three aspherical lenses and one ELD (Extraordinary Low Dispersion) glass element provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images. The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high speed AF. This lens has a rounded 7 blade diaphragm which creates an attractive blur to the out of focus areas of the image. The inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the supplied petal-type lens hood and circular polarising filters.

Sigma 17-70mm f/2.8-4 DC MACRO OS HSM Specifications:

  • Minimum Aperture: f/22
  • Minimum Focusing Distance: 22cm
  • Lens Construction: 17 Elements in 13 Groups
  • Maximum Magnification: 1:2.7
  • Angle of View: 72.4 - 20.2°
  • Filter Size: 72mm
  • No. of Diaphragm Blades: 7 pcs
  • Lens Hood: Petal-type hood
  • Weight: 520g
  • SRP: £399.99
  • Dimensions: D: 79, L: 88.9mm

Available fittings Sigma, Canon, Nikon (D), Pentax, Sony (D)

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pentaxian 12 12 1
4 Dec 2009 2:14PM
This "Hyper Sonic Moor" it has -- is that some kind of high-speed option for photographing fast-moving wildlife on Dartmoor? Could come in handy!

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