Digital BW, The Print

* -----Original Message-----
* From: Victor Landweber [mailto:victor@landweber.com] 
* Sent: Wednesday, December 03, 2003 6:38 PM
* To: DigitalBlackandWhiteThePrint@yahoogroups.com; Victor Landweber
* Subject: Re[2]: [Digital BW] New Tri-X: anyone seen?
* 
* 
(snip earlier)
* 
* More germane to this mailing list: highlight separation may 
* be similar to 
* my silver-print tests when black-and-white film is scanned 
* using a scanner 
* with diffuse illumination such as the medium-format Polaroid/Microtek 
* scanners. The Nikon scanners, in particular, use a collimated 
* light source 
* and should therefore provide highlight separation similar to 
* that of a 
* condenser enlarger.

Victor,

Thank you very much for turning the thread back towards the realm of digital
printing. Hopefully the other participants in the thread will do the same.

To further your enlarger light source to scanner type analogy, I think a
drum scanner is similar to a point source enlarger and can have difficulty
with grainy film. The grain can sometimes be "over resolved" giving a  very
unpleasant gritty effect in the final print. This can generally be
eliminated or reduced by in increasing the scanning aperture to increase the
area being sampled for each pixel or by reducing the scan resolution.

Martin Wesley
www.carolyn.cc/Guests/MartinWesley/pages/MW_01.html
www.borderless-photos.de/guests.html