Di Digitally Integrated Design, is a designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras. The most compact and lightest in the history of fast zoom lenses. Thanks to the revolutionary downsizing XR technology employed by Tamron in the development of high-power zoom lenses such as the 28-200mm and 28-300mm, the dramatic compactness that makes this lens the world s smallest and lightest is achieved. Its compactness makes it look and feel like an ordinary standard zoom lens, yet the versatility that a fast constant maximum aperture offers will definitely reshape your photographic horizons.
Designed to meet performance characteristics of digital SLR cameras. Minimum focusing distance of 13 inches; rotation-type zoom. Smaller and lighter than most fast zoom lenses; weighs 18 ounces. Measures 2.9 inches in diameter and 3.6 inches long.
Lens construction 16 elements in 14 groupsAngle of view 75 to 32 degrees Zooming type Rotation Diaphragm blade number 7 Minimum aperture f/32 Minimum focusing distance 13 inches Macro magnification ratio 1 3.9 (at 75mm) Filter diameter 67mm Accessories Lens hood Mount Canon, Nikon, Pentax, Sony Dimensions 2.9 inches in diameter and 3.6 inches long Weight 18 ounces 28-75mm autofocus zoom lens with f/2.8 maximum aperture.