Panasonic GH6 looks good for most shooting, but low ISO DR falls behind

The Panasonic GH6 uses a new 25MP Four Thirds sensor we've not seen before. It offers a Dual Output Gain mode that implies it's using a different physical design compared with most of the chips we encounter. This, combined with Panasonic's briefing, points to the use of a different sensor maker, for what we have reason to believe is a non-stacked BSI chip. It's this move to a different design and supplier that is likely to have the biggest impact (positive or negative) on its performance, relati...