Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Hans Van
Rafelghem <hvr@a...> wrote:
> Peter Nelson wrote:

> Sorry for my ignorance, but how do you do that starting from a
digital file?

I use a professional lab.

On every image file I give them I have a grayscale step wedge. (I cut
it off the final print with a paper cutter). I supply them with a
print of the step wedge that they can use for a reference when they
make the print.