Comment by tambourine_man

Back in the day, Fuji had a sensor in which half the pixels had a 2-stop neutral density filter, IIRC. It was a 12MP sensor, with an effective resolution a bit higher than 6MP. It was amazing the amount of highlight you could recover in Adobe Camera Raw and the TIFs/JPGs were beautiful, as it’s usually the case with Fuji.

Alas, it didn’t work out in the market, people weren’t willing to trade half their resolution for more DR, turns out. Also, regular sensors got much wider latitude.