[Leica] Comparing film and digital resolution

[frank.dernie at btinternet.com (FRANK DERNIE)]

By what mechanism could a single film grain be partially exposed?
In an area of film the different grey levels come from some grains having 
changed and some not.. In a brightly lit scene most grains will have turned, 
in a partially lit area just some. Quite a large number of grains (thousands 
probably) are needed to show an area of grey.
A single pixel can show a large range of greys on its own.

Perhaps retirement leaves not enough to do. Maybe technical issues are not 
of interest to (or understood by) many, but if they were of no interest to 
anybody nobody would have ever discovered any of the processes involved to 
make photographs, either chemical or digital. So there would be no cameras 
and no means by which photographs could be taken, good or bad.

I like looking at and taking pictures, but personally I am about 1000x more 
interested by the technology :-)

FD



>________________________________
> From: Frank Filippone <red735i at verizon.net>
>To: 'Leica Users Group' <lug at leica-users.org> 
>Sent: Sunday, 13 April 2014, 5:21
>Subject: Re: [Leica] Comparing film and digital resolution
> 
>
>Is this really correct??  A grain of film is a digital ( exposed or not
>exposed)?? How would you then get differing grey levels in the same small
>area?? All the grains in that area would all be exposed or not exposed....
>Closer to the concept of printing.....
>
>