Adding fiveaxis image stabilization to a full-frame ILC
When Sony launched its interchangeablelens compacts in 2010, the company changed its approach to image stabilization. Instead of the sensorbased system used in its Alpha-series DSLRs, it built optical stabilization into its ILC lenses. But Sony hardly abandoned sensor-based IS—in fact, it kept innovating, creating the first stabilization system for full-frame image sensors, which it debuted in the a99. Now, with the a7 II, Sony introduces a new full-frame sensorbased five-axis stabilization system that can operate on its own or work in conjunction with the optical stabilization in some lenses.
We were quite impressed with the results, as well as the other changes Sony made to this popular camera. Though it still bears a striking resemblance to the other Alpha-series ILCs, the a7 II ($1,698, street, body only) required an extensive redesign to add the floating sensor capabilities. Along with this came a more prominent grip with better ergonomics for the shutter release and front command wheel. Likewise, Sony beefed up the lens mount, replacing some of the plastic in the original a7's mount with metal. Plus, it enhanced the autofocus with better tracking capabilities and new algorithms for speedier focusing. Video capture also steps up to the XAVC S codec, allowing 1920xl080p60 capture at up to 50 Mbps. We were eager to run the new camera through the Popular Photography Test Lab and our usual rigorous field testing.