USED Tamron 28-300mm F3.5-6.3 XR LD DI Lens - Canon Fit

Maintaining the high performance of the previous model, Tamron's 28-300mm f3.5-6.3 XR DI LD Lens now features the Tamron "Di" design, making it the ideal lens for use with both full-frame and consumer digital SLR (APS-C) formats. This all-in-one, compact zoom lens offers a minimal focusing distance of 0.49mm and a versatile focal length that covers wide-angle use and subjects at a distance, such as wildlife, sports and portraits.

Tamron's Technical Terms

Di (Digitally Integrated)
Is the designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras as well as film cameras. These lenses may be used on cameras with full format (FF) or APS-C sensors (with a crop factor relative to the camera).

XR
XR Glass is a special type of glass with a high index of refraction. XR Glass allows for a more compact lens construction in terms of length and diameter, as compared to a lens made of customary glass with the same luminosity and optical performance. The focal length of an XR glass element is shorter than that of customary glass, so that the barrel of an XR lens can be shortened. As a result of the shortening of the barrel, the actual opening consequently becomes bigger and the lens diameter can also be reduced (see picture). The luminosity of the lens remains the same in spite of the smaller diameter.