Digital BW, The Print

Hi Martin,

> I also think that this is an excellent question. I will hazard a couple of
> guesses though. Gravure controls tone by varying the depth of the
> etching of
> the plate I believe or it can be a half tone process.

BTW, when I say "halftone" here, I mean simply that it uses a single ink,
and varies the tonality by laying more or less ink down with gaps between
the ink the vary the graytone.

I'd like to understand just how the photogravure varies the tones.  I'm not
finding any really good information on that, but a close-up of the plate
would probably help quite a bit...

Here's one more explanation, a bit more detailed, but over my head:

http://haleysteele.com/hs_root/learning/technical/index.html

I'll have to read it a couple of times very slowly to get any understanding
of it.  Very bizarre picture as an example of PG by the way.

Regards,

Austin