Introduction
The Tamron 17-70 F2.8 Di III-A VC RXD is a very compact general-purpose lens for Sony’s APS-C, E-mount mirrorless cameras. Think of it as roughly equivalent to a 24-105mm F4 lens on a full-frame camera, but scaled down to match the APS-C sensor format.
Although it’s designed for cameras with APS-C sensors, it can still be used with full-frame models when cropped to APS-C. We tried both approaches for this review, pairing it with the Sony a6600 as well as the Sony a7R IV in APS-C crop mode.
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