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Tamron applies the Di (Digitally Integrated) logo to lenses with optical systems designed to meet the performance characteristics of digital SLR cameras, and this 28-75mm Di autofocus zoom lens is no exception. Boasting revolutionary downsizing XR technology, the lens is among the smallest and lightest models in the history of fast zoom lenses. In fact, it looks just like an ordinary standard zoom lens, but offers a fast constant maximum aperture that will reshape your photographic horizons. Specific details include a constant maximum aperture of f/2.8, a minimum focusing distance of 13 inches, and a rotation-type zoom. As with all Tamron lenses, the 28-75mm lens carries a six-year warranty. Lens construction: 16 elements in 14 groups Angle 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 (more…)
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