QTR-Quadtone RIP

There are discussions on several mailing lists on a flaw in most likely 
Apple (Snow) Leopard in combination with Photoshop and Epson drivers. I 
think it should affect B&W printing as well in some cases (untagged B&W 
images) and more likely affect the creation of profiles and curves for 
B&W printing. There have at least been some ABW issues discussed before 
that were related to this flaw. As the variety of workflows is wide, it 
may not affect all but you better check this article and let the 
discussion clear up which workflow could be affected:

http://www.llvj.com/tutorials/solving.shtml


There have been a few messages on the Digital B&W list related to this 
some months ago.


-- 
Met vriendelijke groeten,   Ernst


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I was also having problems with profiles in snow Leopard. I got what I believe is the correct answer from XRite.

The problem has to do with Apple and version 4 ICC color profiles and is explained for the ColorMunki at the following site:

http://www.xrite.com/product_overview.aspx?ID=1114&Action=support&SupportID=5083

A similar fix is warranted for the Eye-1 system.

XRite has posted Snow Leopard compatible updates for their software.

The bottom line is that Snow Leopard does not recognize the Type 4 profiles (which everyone uses). The solution is to regenerate your profiles as Version 2 ICC - I tried it and it works beautifully - at least for color.

--- In QuadtoneRIP@yahoogroups.com, Ernst Dinkla <edinkla@...> wrote:

>
> There are discussions on several mailing lists on a flaw in most likely 
> Apple (Snow) Leopard in combination with Photoshop and Epson drivers. I 
> think it should affect B&W printing as well in some cases (untagged B&W 
> images) and more likely affect the creation of profiles and curves for 
> B&W printing. There have at least been some ABW issues discussed before 
> that were related to this flaw. As the variety of workflows is wide, it 
> may not affect all but you better check this article and let the 
> discussion clear up which workflow could be affected:
> 
> http://www.llvj.com/tutorials/solving.shtml
> 
> 
> There have been a few messages on the Digital B&W list related to this 
> some months ago.
> 
> 
> -- 
> Met vriendelijke groeten,   Ernst
> 
> 
> Dinkla Gallery Canvas Wrap Actions
> 
> |      Dinkla Grafische Techniek      |
> |         www.pigment-print.com        |
> |                 ( unvollendet )                 |
>

chb_photo schreef:
> I was also having problems with profiles in snow Leopard. I got what I believe is the correct answer from XRite.
> 
> The problem has to do with Apple and version 4 ICC color profiles and is explained for the ColorMunki at the following site:
> 
> http://www.xrite.com/product_overview.aspx?ID=1114&Action=support&SupportID=5083
> 
> A similar fix is warranted for the Eye-1 system.
> 
> XRite has posted Snow Leopard compatible updates for their software.
> 
> The bottom line is that Snow Leopard does not recognize the Type 4 profiles (which everyone uses). The solution is to regenerate your profiles as Version 2 ICC - I tried it and it works beautifully - at least for color.


That issue has been mentioned too in the threads but the problem as 
described in the article is another one.


-- 
Met vriendelijke groeten,   Ernst


Dinkla Gallery Canvas Wrap Actions

|      Dinkla Grafische Techniek      |
|         www.pigment-print.com        |
|                 ( unvollendet )                 |

I was doing some testing with 10.6 yesterday and noticed that some QTR greyscale profiles did not appear in the colorsync utility or in photoshop

I ran repairs with the colorsync utility on all the profiles (lots of assorted errors) several times, ending up with four old (colour) profiles that consistently had an MD5 error (even after fixing) Other than this, these profiles look fine, but I've not tested them with a printer.

After a restart, all profiles appear as expected.

The 10.6 system was an upgrade from 10.5, which seems to be working fine at the moment (CS3 though -not CS4)

bye for now
Keith Cooper