re:Digital vs Analog (and where to get a cheap scanner)

[P3D Michael Kersenbrock <michaelk@xxxxxxxxxxx>]

Can't resist, only one more time!

> >Good point.  But doesn't it take an area of silver-image film to use
> >what I'm calling dithering to provide that continuous range of tone
> >or does the film use only density in the thickness-direction of the
> >film to create different gray tones, even for an infinitely small dot
> >in the film's area?
> 
> I'm pretty certain it's more like the latter than the former, except
> rather than "infinitely small", it's the size of the grain that's the
> limiting factor on resolution.

I was talking more about tonality than resolution in this respect. Does
that one grain have an infinite range of tones?

I was using the terms Halftoning/dithering together to account for an
aggregate of silver crystal quantity/spacing as well as size (the halftoning
portion).

> 
> >Does this mean that film has low resolution if I look at
> >it through a lens that has vasoline spread on it, or if the enlarger
> >that made the print was out of focus (just kiddddding) ?
> 
> Even though you're joking, the resolution of the system is only as
> good as its weakest point.  It's useless to argue about the theoretical