QTR-Quadtone RIP

Hi,

Running WIndows and latest version of QTRip with Epson 3880
Have a color profiled and calibrated monitor and generaly getting good match with color images using icc profiles through photoshop

Paper is Hahnemule Photo Rag Baryta so chose the provided neutral curve. Am using the PK ink.

However I printed a B&W image that printed out significantly darker than on screen.

Printing the B&W image straight through photoshop does give a reasonable match (but the blacks arent marvelous - the reason to try QTRip)

A quick try of Epson ABW gave a similar output to QTRip, i.e. darker than on screen, but a bit lighter than QTRip and more neutral.

Questions

1. Any specific settings for the tif image file I print in QTRip (sRGB, Grayscale, Gamma)

2. Any way of creating a icc profile for softproofing in Photoshop ? I tried the QTR_RGB_Photo_Paper profile but that doesnt seem to simulate the print I am getting. Do I need to print wedges and measure etc or can I generate an icc profile

3. Should I need to linearize the curve provided with QTRip (UCpk-PRBaryta-neut-2880)

4. Is there a simple tutorial for windows users that takes me step by step through this profile (The Tom Moore guide doesnt have enough screen grabs and I am uncertain if i am missing some critical setps). 

I am using a lot of paper and ink and need to try and follow are more controlled set of instructions

TIA

The print that appears lighter with QTR is probably due to the straight
line characteristic curve.  See page 16 of
http://www.paulroark.com/BW-Info/Eboni-4-Plus.pdf for a graph that compares
the QTR response curve to that of Gray Gamma 2.2 (as well as Adobe RGB).

I edit in gray gamma 2.2 and the apply a Photoshop image adjustment curve
to have QTR prints match my monitor.  This way the file stays in the
relatively standard color space.  It's just another alternative to soft
proofing.  The GG22-to-QTR.acv curve is in my Zip files.

Paul
www.PaulRoark.com

On Mon, May 13, 2013 at 2:31 PM, beardie_dragon
<ian.scholey@...>wrote:

> **
>
>
> Hi,
>
> Running WIndows and latest version of QTRip with Epson 3880
> Have a color profiled and calibrated monitor and generaly getting good
> match with color images using icc profiles through photoshop
>
> Paper is Hahnemule Photo Rag Baryta so chose the provided neutral curve.
> Am using the PK ink.
>
> However I printed a B&W image that printed out significantly darker than
> on screen.
>
> Printing the B&W image straight through photoshop does give a reasonable
> match (but the blacks arent marvelous - the reason to try QTRip)
>
> A quick try of Epson ABW gave a similar output to QTRip, i.e. darker than
> on screen, but a bit lighter than QTRip and more neutral.
>
> Questions
>
> 1. Any specific settings for the tif image file I print in QTRip (sRGB,
> Grayscale, Gamma)
>
> 2. Any way of creating a icc profile for softproofing in Photoshop ? I
> tried the QTR_RGB_Photo_Paper profile but that doesnt seem to simulate the
> print I am getting. Do I need to print wedges and measure etc or can I
> generate an icc profile
>
> 3. Should I need to linearize the curve provided with QTRip
> (UCpk-PRBaryta-neut-2880)
>
> 4. Is there a simple tutorial for windows users that takes me step by step
> through this profile (The Tom Moore guide doesnt have enough screen grabs
> and I am uncertain if i am missing some critical setps).
>
> I am using a lot of paper and ink and need to try and follow are more
> controlled set of instructions
>
> TIA
>
>  
>


[Non-text portions of this message have been removed]