Tamron"s Di lenses featuring optical systems for use with both digital and film cameras have been highly evaluated by users around the world since the introduction of the first Di lens, SP AF28-75mm F/2.8 (Model A09), in 2003. Many users strongly suggested that Tamron make the existing non-SP high power and compact 28-300mm lens they are using with their film cameras available in the Di design in order to realize the same convenience and quality images with digital cameras. Tamron has redesigned the conventional AF28-300mm zoom (A06) to feature the Di design in order to meet the demand of those photographers. Main Features: High Image Quality by Virtue of Di (Digitally Integrated) Design: The "Di" design is achieved by first improving our BBAR coatings to a new multi-coating that encompasses all of the benefits of the original but now further reduces the ghosting and flare caused by aberrations, and secondly by further enhancing our already stringent quality control system. The new AF28-300mm Di is redesigned as a high power zoom lens now ideal for use with interchangeable-lens digital cameras as well as film cameras. Changes 1. Improved Coating: Newly developed Multi-coating ideal for digital imaging to reduce ghosting and flare caused by aberrations and to increase contrast 2. Enhanced Quality Control: Ensure mechanical and and optical meet new standard 3. Exterior design: Di lo