On 2015-10-09 22:58 , Igor PDML-StR wrote:
2. If noise is generated at the boundary of the sensor. (This could be relevant for very high-density/small pixel size sensors) Then the combined boundary length (circumference) of the M smaller pixels covering the same area as one large pixel will be Sqrt(M) times larger then that of that single large pixel.
the boundary between photosites is also an area that is less "functional" at transmitting photons to their respective photosites; each microlens is less perfect at its edges, plus there is at least some area that isn't photosensitive between each photosite
so on denser sensors, there is not just more linear boundary, but also a higher proportion of total sensor area that is less functional
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