This high-speed ultrawide is well-suited for travel.
This high-speed digital only ultrawide ($650, street) upgrades Tamron’s nonstabilized 17–50mm f/2.8 ($460, street). Like the earlier lens (which remains in the lineup), this version uses an Extra Refractive (XR) element, two elements of low dispersion, and three of compound aspheric glass—adding up to a remarkably compact yet sharp and mostly distortion-free f/2.8. Vibration Compensation uses Tamron’s triaxial technology, claimed to work on three planes instead of the usual two.
