QTR-Quadtone RIP

CS4 or CS5 along with OSX 10.5 or 10.6 have a problem doing grayscale.
What happens is that no matter what selections you make in PS the OS always
converts whatever you send it to a fixed profile.   In 10.5 its
Generic Gray which
is a gamma 1.8 profile.  In 10.6 its a new profile called Generic Gray Gamma 2.2
which you'd think was a gamma 2.2 curve but its not.  The little glitch you see
in the graphs is exactly the conversion of Gray Gamma 2.2 to Generic GG 2.2.

Using CS3 is the easiest workaround currently.

Roy

On Thu, Feb 3, 2011 at 10:31 PM, hhchapman4104 <hchapman@...> wrote:
>
>
> Hello Andrew,
> I don't believe the problem is the print settings between CS3 and CS5. I appreciate your suggestion though.
> -Harlan
> --- In QuadtoneRIP@yahoogroups.com, Andrew Darlow <ad@...> wrote:
>>
>> Hi:
>>
>> I'm guessing you know that the way the print dialog works is different. You should definitely save a Preset when you click on Print Settings as the settings might not be sticking.
>>
>> I wrote an article about it here:
>>
>> http://www.pixiq.com/article/how-to-navigate-changes-to-the-print-dialog-box-in-photoshop-cs5
>>
>> Hope that helps,
>>
>> Andrew
>>
>> Andrew Darlow
>> Editor, The Imaging Buffet
>> http://www.imagingbuffet.com
>> Author, 301 Inkjet Tips and Techniques:
>> An Essential Printing Resource for Photographers - http://www.inkjettips.com
>> and
>> Pet Photography 101:
>> Tips for Taking Better Photos of Your Dog or Cat - http://www.PhotoPetTips.com
>> http://facebook.com/andrewdarlow
>>
>>
>>
>>
>>
>> On Feb 2, 2011, at 8:08 PM, hhchapman4104 wrote:
>>
>> > Printing with linearized QTR profiles in CS3 works fine for me. When I print the same file in CS5 the dark values are off. I am consistent in my color management (all gray gamma 2.2) and print set up.
>> > See this example using the supplied QTR Ilford Smooth Pearl profile printing a 21 step wedge and reading LAB L with an Eye-One spectrophotometer. The red line is the print from Photoshop CS3, the blue line from CS5:
>> > http://img40.imageshack.us/f/cs3vscs5.jpg/
>> > Here is the Photoshop print dialog from CS5:
>> > http://img821.imageshack.us/i/cs5printdailog.jpg/
>> >
>> > I'd heard rumblings in the past about possible issues with printing in CS5 but my poor searching skills didn't turn anything up on this in this forum.
>> >
>> > I can continue to print in CS3 but was wondering if there was a fix to enable using CS5?
>> >
>> > Thank you!
>> >
>>
>>
>>
>>
>>
>>
>> [Non-text portions of this message have been removed]
>>
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