Sony has launched a third generation of its Cyber-shot RX10 camera, its superzoom imaging device that offer features useful to videographers. The RX10 III is largely the same as its predecessor, the RX10 II launched last June, but this time Sony has extended the zoom from 24-300mm to 24-600mm, giving it a 25x optical zoom, however it does lose the constant f2.8 aperture of the second generation in favor of a variable f2.4-4 for the new lens.