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The Tamron 60mm f2 Di II macro is a good lens with high sharpness and low distortion, even wide open, at both normal and macro focusing distances. The fast f2 aperture allows creative use of DOF effects, provides a sightly brighter image for focusing and can be used to better blur backgrounds in portrait work. Peak performance is probably in the f5.6 to f8 region, but the lens can be shot wide open at f2 and excellent results still obtained.
My only complaint is a less then perfect manual focus action with stiff operation and a small amount of play. This is offset by accurate AF, even at 1:1 macro settings. As an unexpected bonus, the lens has full frame coverage at 1:1 macro settings, though possibly with slightly lower corner image quality.
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