Average Reviews:
(More customer reviews)The new Di lenses from Tamron are designed to work well with digital cameras, although those with the Di will work for 35mm as well (Di-II only work with smaller, APS-C chip size digital cameras). This is an improvement on the fine 70-300 LD (Low Dispersion glass) design. The major improvements in this lens are in the coatings, to help reduce any color bias, and minimize reflections. Additionally, lens manufacturers are doing more inside the barrels to reduce reflections.
Like the older LD design, the new lens has a close-up mode (not strictly "macro") position that allows images 1/2 lifesize on the negative. That's about twice the size of most 300mm zooms lacking this feature.
Compared to the Canon lenses, it includes a lens hood ($$ from Canon) and a six year USA warranty (vs. 1 year). It's a bit noiser than the Canon lenses in autofocusing. Additionally, the Canon 75-300 III is a considerably older design, which came out well before the needs of digital cameras were known. One slight drawback is that the Tamron uses 62mm filters vs. 58mm for the Canon (which is the same size as the popular 18-55 kit lens).
Click Here to see more reviews about: Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Canon Digital SLR Cameras
Tamron now offers a lightweight, compact, high-image-quality telephoto zoom lenswith macro capability of 1:2 that can be used with digital cameras. This new lens is a Di type lens using an optical system with improved multi-coating designed to function with digital SLR cameras as well as film cameras.With this 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.
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