Sigma 17-70mm f/2.8-4.5 DC Macro Lens for Pentax Digital Cameras

Sigma Zoom Super Wide Angle AF 17-70mm f/2.8-4.5 DC Macro Autofocus Lens for Pentax Digital SLR Cameras

Sigma Zoom Super Wide Angle AF 17-70mm f/2.8-4.5 DC Macro Autofocus Lens for Pentax Digital SLR Cameras

B&H # SI177028DCPA MFR # 669109
Sigma 17-70mm f/2.8-4.5 DC Macro Lens for Pentax Digital Cameras

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Sigma 669109 overview

  • 1Description

The Sigma 17-70mm f/2.8-4.5 DC Macro lens is a large-aperture lens with a maximum f/stop of f/2.8 in wide angle setting. The super wide-angle capability of this zoom lens (equivalent range of approx. 25.5-105mm when used with a Pentax digital SLR camera) makes it ideal as an everyday large-aperture lens. In addition, the maximum magnification of 1:2.3 also enables close-up photography.

DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras.

Note: Not suitable for 35mm film SLR cameras

Minimum focusing distance of 7.9" (20 cm) at all focal lengths
Correction for various types of aberration provided by one SLD (Special Low Dispersion) glass element and two aspherical lenses
The lens design incorporates an inner focusing system, which prevents the front of the lens rotating, making it particularly suitable for use with circular polarizing filters and petal shaped lens hoods
Zoom Lock Switch eliminates "Zoom Creep" during transportation
In the Box
Sigma Zoom Super Wide Angle AF 17-70mm f/2.8-4.5 DC Macro Autofocus Lens for Pentax Digital SLR Cameras
  • Front & Rear Lens Cap
  • Lens Hood
  • 1-Year Warranty
  • Table of Contents
    • 1Description

    Sigma 669109 specs

    Filter Size 72mm
    f/Stop Range 2.8-22
    Minimum Focus Distance 7.9" (20 cm)
    Magnification 1:2.3
    Angle of View 72.4 - 20.2°
    Groups/Elements 12/15
    Length 3.2" (82.5mm)
    Maximum Diameter 3.1" (79mm)
    Weight 1 lb (455 g)

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