Sony's A7 III Mirrorless Camera Flaunts Its Sensor Smarts

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Sony's A7 III has a full-frame sensor that's the stuff of a silicon junkie's dreams.

Peter Belanger

Crack open some of today’s best compact cameras^[1] and you’ll find Sony^[2] sensors embedded in their guts. However, the Japanese giant hoards its best work for its own Alpha line of mirrorless cameras. The latest, Sony’s A7 III, has a 24-megapixel, full-frame CMOS sensor that’s the stuff of a silicon junkie’s dreams. Its 693 phase-detection points and 425 contrast points boost autofocus speed, giving you sharp, finely detailed shots of moving subjects. While Sony’s pro-grade A9, with its superfast electronic shutter, costs more than twice as much, the A7 III gets you almost all of the way there, blending performance and value into a supremely easy-to-handle machine. That’s good—you’ll need the extra...