Sigma
70-300mm F4-5.6 DG Macro for Nikon
Telephoto Zoom Lens Capable of Macro Photography
A telephoto zoom lens for Nikon, the 70-300mm f/4-5.6 APO DG Macro Lens from Sigma is capable of macro photography with a 1:4 maximum close-up magnifaction at focal lengths from 70mm to 200mm and 1:2 maximum close-up magnification at 300mm. It incorporates an autofocus motor for fast and quiet autofocus with full time manual focus override for precise control.
The DG lens design corrects for various aberrations. The optical design features two Special Low Dispersion glass elements in the front lens group, plus one Special Low Dispersion glass element in the rear lens group, to minimise chromatic aberration. It is also specially coated to achieve the best colour balance while also cutting down on ghosting caused by reflections from the digital image sensor.