Tamron AF 28-300mm F/3.5-6.3 XR Di LD Aspherical (IF) Macro Overview

Manufacturer description: A 10.7x zoom that, when used on an APS-C digital SLR, renders a picture angle range equivalent to a 43-465mm lens on a full-frame DSLR or a 35mm film SLR. Its Di lens properties allow it to function on full-frame and APS-C digital SLRs, as well as 35mm film SLRs. Engineered for extreme compactness, award-winning image quality is optimized through use of a combination of XR (Extra Refractive Index) and LD glass. Internal focusing contributes to responsiveness and maintains constant lens barrel length and Macro focusing brings small subjects into view crisply.