A new Sony 3-layer sensor patent revealed, the noose around Foveon's neck slowly tightens a bit more.

As a reminder, we'll repeat that both Canon, Panasonic and Fujifilm have applied for several similar patents each., and as usual, where there's smoke, there's fire. There are two major problems with the current, Foveon implementation of such a sensor. First, the high iso noise is atrocious comparable to that of CMOS sensors almost a decade old, and second, the readout speed is not high enough to obtain HD video at a satisfactory bitrate. For all you techies, here is the pdf documents of Sony's latest 3 layer sensor patent application. 

 

 

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