Other than a smallish 1/2.3-inch sensor, Sony's new PXW-Z100 4K camcorder should push all the right buttons for pro shooters. Though it shares a sensor (and body) with the newly launched FDR-AX1 prosumer model, everything is upmarket from there. It'll record 4:2:2 10-bit (billions of colors) 4K video at up to 500/600Mbps at 50p/60p using its