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Tamron’s full-frame 20-40mm F2.8 lens arrives next month for $699
Imaging Recource BrandsLast month, Tamron announced the development of a new 20-40mm F2.8 Di III VXD lens for full-frame Sony mirrorless cameras. Today, Tamron released more information about the lens, including full specifications, pricing and availability.
The 20-40mm full-frame lens includes 12 elements across 11 groups, including four low dispersion (LD) elements, a pair of Glass Molded Aspherical (GM) elements, and a single Hybrid Aspherical element. It's quite a bit of glass in a relatively compact package. The lens weighs 365 grams (12.9 ounces)...
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