QTR-Quadtone RIP

Eric Ashworth  wrote:
> As for curves, I'm in the process of building/fine tuning mine right  
> now, and would be more than willing to make them available for  
> download on my website, as soon as I've got them done in the next  
> couple days. Right now, I'm only using Hahnemuhle Photo Rag (188  
> gsm), Epson Premium Glossy, Epson Semi-Gloss and Illuminata Photo  
> Cotton (Cool tone), 

Thanks Eric, the above curves are a good start for me. I use Photo Rag but will be testing 
the Illuminata line too. Let me know when you have curves to share.

> I just picked up an x-rite 32R and am just learning how to use it.  
> Unfortunately, the built in display apparently only shows the density  
> to the hundredths place and the additional accuracy (thousandths) is  
> only available if you've got it hooked up to a computer?!, so I'm  
> having to tweak the results slightly in a trial and error process.

I also have a x-rite 32R...but need a calibration card. Didn't know the density shows only 
to hundredths on the display. I have the 418-79 serial cable but I guess I'll need a USB 
adapter. I posted the below from X-Rite tech support regarding the best usb adapters a 
few weeks ago, it might help you selecting the best serial to usb adapter:

"Note that not all Keyspan adapters are alike. Under OSX we have found the
older Keyspan USA 28 (beige) adapter typically do not work well. We have
also found that "PDA adapters" do not work consistently either. We have had
continued success with the Mac only Keyspan USA-28x and the cross-platform
USA19QW or USA19HS models."

RayC
-- 
Raymond Cheydleur
OEM Application Specialist
developer support
X-Rite Incorporated

--------------------------------------------------------

The Keyspan USA-28x can be had for about $30.00 on Amazon. There's a guy selling 
them as new/used.


> In the meantime, I should think you'd have pretty good results, even  
> without using the scanner, by just opening one of the UT-2 curves for  
> the paper you're using, and add the fourth gray ink with a value  
> somewhere in the range of 6-8%, then building the new curve. I should  
> think the linearization would still be pretty close. 

Cool...I'll give it a try!

Best,

John V.