Nikon previews pro-grade D4S camera with faster autofocusing

The D3300 isn't the only DSLR that Nikon will show at CES. The camera maker has revealed that it will preview its next-generation flagship camera, the D4S, at its booth on the show floor. While Nikon isn't saying much about the new pro cam's advantages over the D4, it's already talking up a new imaging engine that should deliver faster autofocusing -- no mean feat when the D4 is already quite nimble. It's still too early for any launch details, but you can be sure that we'll take a look at the D4S as soon as possible.