The Tamron AF 70-300mm f/4-5.6 Di LD Macro
lens is a quality compact ultra tele zoom lens which covers the 70mm to 300mm
telephoto range, with a maximum magnification ratio of 1:2 at the tele end. This lens delivers ultimate handling ease and
portability in the field due to its lightweight size and mechanical operation.
Best suited for shooting outdoors to make full use of the real telephoto of
300mm as well as providing diversity in portraiture using the medium focal
length ranges of 70mm to 135mm. Di (Digitally
Integrated Design) is a designation Tamron puts on lenses featuring optical
systems designed to meet the performance characteristics of digital SLR cameras.
Design
Digitally Integrated is a designation
Tamron puts on lenses featuring optical systems designed to meet the
performance characteristics of digital SLR cameras. By employing
"Internal Surface Coatings" and multiple-layer coating technology on
ordinary elements, ghosting and flare due to reflections that occur when
light enters through the front element and reflections caused by the
imagers themselves are reduced to the absolute minimum.
Macro Effect of 1:2 in Telephoto Zoom
Range
Flipping a macro switch in the focal
length range of 180mm to 300mm allows entry into the macro range, for
photography as close as 37.4" (95 cm) from the subject. In the macro
range, one can take advantage of the telephoto effect and a maximum
magnification ratio up to 1:2. In addition, since the focal length in
the macro range spans from 180mm to 300mm, zooming can also be used to
adjust composition.
