CP+ 2018: First look at new Tamron FE-mount 28-75mm F2.8
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CP+ 2018: First look at new Tamron FE-mount 28-75mm F2.8

One significant development in the 28-75mm is a new 'RXD' stepper motor for autofocus, which is designed to be near-silent. According to Tamron, this is important for a lens designed from the ground up to be used with mirrorless cameras since compared to DSLRs, they're better suited to switching between stills and high-quality video capture modes.