I have been wondering how Sony will position its replacement for the a99 after the a7 and a7r. I suggested in another post that Sony might be restricting the a7 (no phase detection autofocus and no in body image stabilisation) in what, otherwise could be considered the current summit of full frame technology. Well, it seems Sony isn't simply leaving headroom for its top end but is pushing the envelope with a new 54 Megapixel Full Frame sensor. It has 2460 focusing points and the focusing area covers 78% of the entire sensor. Apparently it is still very expensive to produce so cost might mean that it never sees the light of day. Rumours also speak of each pixel able to have a different shutter speed although I've no idea how this would work. It would, however, provide a vast dynamic range. Looks as if Sony isn't standing still.