Tamron 17-70mm

Tamron 17-70mm f/2.8 for Sony APS-C: Why This Zoom Might Be the Smartest Lens Buy Right Now
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Tamron 17-70mm f/2.8 for Sony APS-C: Why This Zoom Might Be the Smartest Lens Buy Right Now

I keep a spreadsheet of every budget lens I’ve ever tested. Not because I’m obsessive (okay, maybe a little), but because the price-to-performance gap in this category changes fast and I want receipts when I tell someone what to buy. The question I get most from Sony APS-C shooters is always some version of: “Do I really need a dedicated crop-sensor lens, or can I just slap a full-frame lens on and call it a day?

The Tamron 17-70mm f/2.8 Is the One Lens I'd Tell APS-C Shooters to Buy First
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The Tamron 17-70mm f/2.8 Is the One Lens I'd Tell APS-C Shooters to Buy First

I’ve tested a lot of lenses in the sub-$500 range. I keep a running spreadsheet, which yes, my friends think is unhinged, but it’s saved me from buying garbage more times than I can count. The question I get most often from newer shooters is some version of: “What’s the one lens I should own?” It’s a fair question, and for APS-C users it’s actually answerable. The problem is that most “do-it-all” zoom lenses either sacrifice aperture or image quality to hit a price point, and you end up with something that’s fine but never great.