Tamron 20-40mm f/2.8 Di III VXD Review: Tiny Yet Mighty

Tamron’s trend of making atypical focal length lenses continues with the new 20-40mm f/2.8 Di III VXD lens. Like previous lenses in its "Frankenfocal" category, this new one is a success in everything that matters, from size, to resolution, to price.

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