Digital BW, The Print

> 
> In almost every magazine I scrutinize I see the rosettes, I thought that was
> a very acceptable thing.  I was truly under the impression that if I did not
> see the pattern then it was printed with stochastic screening. I'm going to
> do some research, thanks.
> 

The rosette you refer to is the very principle of off-set printing, and it
will be present in every piece of paper which was printed with a halftoned
image (as long as printed on an ordered dither). It shows up from the
different angles the CMYK colors are printed.
Moire is what happens when, say, the pattern of a digital back (mainly
one-shot) "coincides" with the pattern of fabric, or any repeated tiny lines
or dots - like a fence, for instance. It can be avoided if you increase or
decrease - up to a certain extent - the resolution of the scan or the
distance from the subject. Usually is impossible to eliminate luminance
moire, but you can handle very well the moire colors.
Hope this helps,
-- 
Rodolpho Pajuaba
www.pajuaba.com.br