Sigma 17-70mm f/2.8-4 DC Macro OS HSM Review

The Sigma 17-70mm f/2.8-4 is a budget-friendly zoom lens that tries to do a bit of everything. It covers a useful range from wide-angle to short telephoto, and that constant f/2.8 aperture at the wide end is a nice touch for the price.

But you can feel the corners it cuts. The build quality is just okay, and it's missing features like image stabilization that are common on modern lenses. It's a classic case of getting what you pay for.

Where this lens shines is in its versatility, ranking in the 92nd percentile. That 17-70mm range is genuinely handy for everyday shooting. The autofocus is middle-of-the-road, and the optical quality is decent but not amazing. The big letdown is the macro performance, which is in the bottom 16th percentile, so don't plan on doing any serious close-up work with it.

For $225, it's hard to complain too much. You're getting a versatile zoom with a bright aperture at one end. If you're on a tight budget and need one lens to cover a lot of ground, the value is definitely there. Just know you're sacrificing build quality, stabilization, and optical excellence to hit that price point.

Stack it up against the competition and the trade-offs are clear. The Viltrox 35mm F1.7 will give you much better low-light performance and bokeh for portraits, but you lose the zoom. The Panasonic 14-140mm has way more reach and stabilization, but its variable aperture is slower. The Canon EF-S 17-85mm is a closer match, but it's older and also has a slower, variable aperture. This Sigma wins on having that constant f/2.8 at the wide end for the money.

Buy this if you're a beginner or a budget-conscious shooter who wants a single, do-it-all lens and doesn't mind some compromises. It's a solid walkaround lens for the price. Look elsewhere if you need sharpness, stabilization for video, weather sealing, or any real macro capability.