Digital BW, The Print

Tom & Martin,

Yes, we've got some new 16-bit questions to explore here.  

I sure don't want to deal with huge 16-bit/channel, multiple-layer files,
but for this one step of applying a curve whose shape just was too much for
8-bit/color to handle smoothly, it sure saved the day (or what's left of
it).

Gustav Le Gray reproduction: c=49, m=61, y=74.
The full sepia curve & UT-2: c=49, m=63, y=74.

Yes!

Paul
www.PaulRoark.com 
_____________________________________

-----Original Message-----
From: Martin Wesley [mailto:mwesley250@...] 
Sent: Friday, November 28, 2003 9:52 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: RE: [Digital BW] 16 bit printing



* -----Original Message-----
* From: Paul Roark [mailto:paul.roark@...] 
* Sent: Friday, November 28, 2003 9:37 PM
* To: DigitalB&WPrint
* Subject: [Digital BW] 16 bit printing
* 
* 
* Photoshop CS just made me very happy.
* 
*  
* 
* The full sepia curve for my latest dual-toner 1280 inkset had 
* visible stair-steps with RGB 8-bit/channel printing.  When I 
* converted the test file to 16 bit/channel just before 
* applying the curves, it printed with no artifacts through the 
* Epson driver.
* 
Paul,

Nice, huh? <G> I think this may overcome one of the inherent problems with
RGB separation curve workflows. In 8-bit the curves really stressed the
image data and if the data was already on the edge you could wind up with
problems in the final print. Staying in 16-bit you have a much, much larger
margin for error.

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




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