The Tamron 70-180mm f/2.8 lens (B&H) is an interesting new option open to Sony photographers. What makes it particularly enticing -- it is half the price of the Sony 70-200mm f/2.8 GM (B&H) and it is nearly half the weight of the Sony lens. It is a much more compact lens, yet still retains that sweet f/2.8 aperture. This all sounds wonderful, but we'll have to balance this against lens sharpness and overall performance first. For those then who need a quick summary for a review -- this lens is really sharp!
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