The Tamron 28-75 f/2.8 for Sony-E mount is compact, sharp, and inexpensive, with solid autofocus.

When the Tamron 28-75mm f/2.8 lens was announced last spring, I was immediately intrigued by its compact size and low price, but I had concerns about the loss of 4mm at the wide end of the zoom. For the past three months, I’ve been testing the lenses to check resolution and sharpness, autofocus, and suitability for general use. My findings are in the video above, with additional details below.
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https://www.lightandmatter.org/2018/videos/lens-comparisons/tamron-28-75-f-2-8-vs-sony-24-70mm-gm-lens-comparison-video/