[rocqua]

Lower noise is not going to do much.

Most of the noise in a modern camera at 'high' iso is present in the light signal you are capturing, rather than the result of a noisy amplifier.

Light (the arrival of photons at a pixel) is approximately a poison process with the brightness being the arrival rate of photons.

At low brightness, short exposure time, the variance in the total photons received at a pixel starts becoming relevant and visible.

[emkoemko]

and yet noise has improved over the years same with the dynamic range, to the point where they can decrease photodiode size and still keep fairly good noise and then also release cameras with lower resolution with this technology to have very good low light capabilities like the A7S series. Look at the Canon EOS R3 just a massive jump in ISO quality and double the resolution of the A7SIII

[rocqua]

Resolution has little effect on 'shot noise' (The noise I was talking about). That's because when viewed at the same size, the noise averages out to be the same visual noise.

I believe that 'low light capabilities' are going to stagnate soon-ish simply because shot noise starts dominating sensor noise. The only real solution to shot noise is just more exposure. But aperture is generally maxed, and it seems unlikely to me that image stabilization can go much further.