See but you don't necessarily want full range logarithmic.
If your darkest pixel is halfway down the ADC range, on linear you're throwing away one bit, on logarithmic you're throwing out way more bits. Just using higher bit linear ADC then converting it to logarithmic in post-processing seems more sensible. Hell you could even go signal magic and merge few photos with different shutter speed together to get most detail.
Also proper log-to-in converter like AD8307 costs like $20 so I'd assume doing that woudl bring the sensor price way up if you needed to have a bunch of them.
If your darkest pixel is halfway down the ADC range, on linear you're throwing away one bit, on logarithmic you're throwing out way more bits. Just using higher bit linear ADC then converting it to logarithmic in post-processing seems more sensible. Hell you could even go signal magic and merge few photos with different shutter speed together to get most detail.
Also proper log-to-in converter like AD8307 costs like $20 so I'd assume doing that woudl bring the sensor price way up if you needed to have a bunch of them.