Digital BW, The Print

I'm currently doing a lot of testing comparing the Roark workflow 
with curves and QTR in terms of contrast, detail, dither patterns 
and sharpness. I still have some testing to do before I come to any 
conclusions but I'd be happy to hear if any of you have done similar 
tests and what conclusions you might have come to. 

One problem I've experienced with QTR is that when I print with the 
page in Horizontal format I get a dark line across the bottom of my 
image. I don't get this line when I print with the page set 
vertically. The line doesn't exist in my image. I'm using UT2 inks 
and the Epson 1280 printing at 1440 super. On another note, I tried 
2880 and it radically stretched and distorted the image vertically 
off the page. I guess 2880 isn't fully supported.

Jim Pegoda

Again tonight I tried Paul's curves on Kirkland paper, with the same
ill-fated results. I must have a different driver (latest), or ink
batch (Nov 04), or printer firmware (who knows), than Paul. My
comparison to QTR is here:

http://www.pmb.net/darkroom/
2005/01/roark-curves-vs-qtr-for-kirkland-paper.html

In comparing EvenTone dither with Ordered, I found Ordered dither to
be slightly (but still visibly) darker, perhaps with more contrast. I
was not able to quantify the dot pattern differences.

Looking forward to your full report, Jim.

-Pieris

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jimpegoda"
<pegoda@c...> wrote:
> 
> 
> I'm currently doing a lot of testing comparing the Roark workflow 
> with curves and QTR in terms of contrast, detail, dither patterns 
> and sharpness. I still have some testing to do before I come to any 
> conclusions but I'd be happy to hear if any of you have done
similar 

> tests and what conclusions you might have come to. 
> 
> One problem I've experienced with QTR is that when I print with the 
> page in Horizontal format I get a dark line across the bottom of my 
> image. I don't get this line when I print with the page set 
> vertically. The line doesn't exist in my image. I'm using UT2 inks 
> and the Epson 1280 printing at 1440 super. On another note, I tried 
> 2880 and it radically stretched and distorted the image vertically 
> off the page. I guess 2880 isn't fully supported.
> 
> Jim Pegoda