Advantages: High Quality. Sharp. Good package for price. Disadvantages: No HSM or Internal focusing.
...The 'EX' designation which, in SIGMA terminology, relates to 'EXCELLANCE' and their 'professional' quality range of lenses which generally, exhibit a somewhat higher specification, build quality, finish and design feature-set than their 'DC' range of lenses. It therefore comes in the familiar smooth matt black 'crinkle finish which is quite attractive and so far, apparently hard wearing. Although this unique finish does seem almost to 'attract' dust ... ...of focus.
Like all Sigma EX lenses, this example also comes complete with soft case, front and rear caps and a lens hood (metal, screw on, barrel type) - which rather unusually has a filter thread cut into the end of it, permitting the attachment of common 77mm size filters. The lens itself has a smaller filter thread of only 62mm. Common still but less so than 77mm size.
Although an EX lens, unusually and perhaps, a little disappointingly, it ...
davecham 04.01.2009
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Ciao members have rated this review on average: very helpful Review of Sigma EX macro lens - 70 mm F/2.8
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Filter Size: 62mm This medium telephoto macro lens is ideal for both digital SLR cameras ... more
and 35mm film SLR cameras. The 70mm f2.8 focal length gives an equivalent field of view as our popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor.
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