Sony is on a roll. No sooner do I notch up a thousand clicks on my A7r than a new and better beast arrives, this time a full-frame mirrorless camera with ISO performance up to a staggering 409,600 and offering an “unprecedented dynamic range”. According to Sony, the new A7s will offer effortless handling, extreme highlights and rich, deep blacks in the same frame.” And, as a slap in the face to the pixel panderers, these wonders will be achieved with a sensor with a mere 12 Megapixels to play with. Yes, one third of the density of the current A7r.This is a camera that can almost see in the dark; it will certainly be a dream for video work and it will set new benchmarks for the rest of the pack to follow. And just think of the saving in storage.