Panasonic vs the Nikon and Sony competition (autofocus and High ISO test)

Quick roundup of tests and news around the new Panasonic S cameras:

Atomos Ninja V offers 4k 10-bit 422 HDR recording with the Panasonic LUMIX S1 (L-rumors).
Panasonic S1-S1R first Impressions from Ted Forbes and new reviews roundup! (L-rumors).
Beautiful set of Panasonic S images from Richard Wong (L-rumors).