Tamron AF Di LD Macro 70-300mm f/4-5.6 Telephoto Lens for Pentax - Black

Tamron now offers the 70-300mm F4.0-5.6 AF Di LD Macro Lens, a lightweight, compact, high-image-quality telephoto zoom lens with macro capability of 1:2 that can be used with digital cameras. This lens is a Di (Digitally Intergrated Design) type lens which uses an optical system with improved multi-coating designed to function with digital SLR cameras as well as film cameras. With Tamron's 70-300mm telephoto zoom lens, flipping a macro switch in the focal length range of 180mm to 300mm obtains a maximum magnification ratio of 1:2 at a minimum focus distance as short as 37.4", enabling close-up shots of flowers, insects, and other objects that normally require the use of a specially designed macro lens. Moreover, this is a zoom lens that casually offers the distant capture and foreshortening effect pleasures of the 300mm ultra-telephoto world. An advanced optical design which incorporates special LD glass is also a feature of this lens. The lens is 22% lighter and 4% shorter than other lenses in its class.