Digital BW, The Print

Hi Austin,

My thoughts :
 
 Increasing the number of electrons up to near the full well depth of
the CCD ( for 'white' ) will optimize the the number of values
actually converted by the ADC and perform an analog smoothing of the
data by having more electrons per binary step.

I.e.  you could have from 0 to 4096 electrons for 12 bits of data, or 
more deeply fill the well of a CCD element to 12000 to 120000
electrons or to whatever it is spec'd and then divide them into 4096
levels. This also get one further above the read noise.

Best,
Alex


> 
> When you change the exposure time, you merely shift the data up or
down in
> the values it converts.  Now, I have to actually see if you do in
fact get
> more/less number of values when doing this.  As I mentioned, I went
through
> this exercise not too long ago, but don't remember what I concluded.
 I'll
> let you know.
> 
> Regards,
> 
> Austin