17-70mm F2.8-4 DC Macro OS HSM Refurbished
- Exclusively for use with smaller chip APS-c cameras
- Focusing to 8.7" away for a 1:2.7 magnification
- Three aspherical & ELD glass elements
Designed to deliver the ultimate in performance on full-frame digital SLRs, Sigma DG lenses also bring out the best in 35mm SLR film cameras and APS-C size DLSRs.
These are special lenses designed for APS-C size sensors so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus!
In order to attain the highest quality images, the APO lens has been made using special low-dispersion (SLD) glass and is designed to minimize color aberration.
This function utilizes a built-in mechanism that compensates for camera shake. It dramatically expands photographic possibilities by alleviating camera movement when shooting by hand held camera.
This lens uses a motor driven by ultrasonic waves to provide a quiet, high-speed AF.
The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.