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Re: [datacolor_group] Digest Number 1209

Re: [datacolor_group] Digest Number 1209

2012-04-25 by Roy Sletcher

>>>The point of my story is that on a whim I asked friend to lend me his
>Colomunki Photo. To my surprise the first profile which took only a
>few minutes was spot on, or a least as good as the Spyder profiles
>which were taking me a couple of hours per profile using multiple
>sheets of paper with all the adjustments. 
>
>
>Then there is something wrong in your process that is not happening with your Munki profiles, but is with your Spyder profiles. When I use both side by side the results are very similar initially, except for clogged shadows from the Munki at some intents, and more precise color detail from the Spyder if the printer is not linear (say a color laser...). So finding out where to error in your Spyder workflow lies, most likely in target printing, shoud solve the problem. 
>
>
>C. David Tobie
>Global Product Technology Manager
>Imaging Color Solutions
>Datacolor inc. 
>cdtobie@...
>www.datacolor.com
>

David,

Thank you very much for taking time from your busy schedule to reply.
I will dutifully review my methodology when printing the targets. 

Experience has shown me that in a majority of cases my problems are
caused by myself and not the hardware/software I am so quick to blame.

In case anybody has additional comments or help I will add follow
facts:

Printer Canon Pixma Pro9000 mark 11
Substrates - Red River and Iford.
Ink Image Specialists

I am sure I was using correct printing procedure, and my method was
common for CM and Spyder profiles.  - Will revisit it to be certain.

Interestingly both CM and Spyder displayed plugged shadows and three
quarter tones. compared to the soft proof. Unfortunately the Spyder
profile also significantly warmer overall.

I used the TIFF file from Uwe Steinmueller's test image for
comparisons to take my monitor profile out of the evaluation.

I would welcome any comments for others on this matter.

Sincerely

Roy Sletcher

Re: [datacolor_group] Digest Number 1209

2012-04-25 by C D Tobie


On Apr 25, 2012, at 4:44 PM, Roy Sletcher wrote:

Thank you very much for taking time from your busy schedule to reply.

Well, this is, at least indirectly, part of my job…

I will dutifully review my methodology when printing the targets.

See below...

Experience has shown me that in a majority of cases my problems are
caused by myself and not the hardware/software I am so quick to blame.

True of all of us, its just that those of us who do this a lot learn to suspect ourselves and our processes first, and the equipment last, instead of the other way around.

In case anybody has additional comments or help I will add follow
facts:

Printer Canon Pixma Pro9000 mark 11

Hmmm… problem printer (well, its a problem in terms of metamerism as well, but I mean in terms of color management)

Substrates - Red River and Iford.
Ink Image Specialists

Haven't tried that ink in the printer in particular, but the color management issues will be the same with any ink.

I am sure I was using correct printing procedure, and my method was
common for CM and Spyder profiles. - Will revisit it to be certain.

I'd suggest you take a vacation, and wait until I get back to you. I have just purchased (ouch) a new print head for a printer from this family, as well as new inks, so that I can do some testing of my own. At this time, despite being the official expert on the matter, I have yet to find a way to properly turn off color management in the Pro9000/Pro9500 drivers, to print targets, and then to apply the resulting profiles. Thus my efforts to get one running for more testing. Until I can do it, I don't expect you to waste more paper and ink trying it. This is all assuming a Mac OS; if you are using Windows, then the particular bug I am about to go on Safari to find is not an issue...

Interestingly both CM and Spyder displayed plugged shadows and three
quarter tones. compared to the soft proof. Unfortunately the Spyder
profile also significantly warmer overall.

I would hate to think that I"ll need to drag my ColorMunki out as part of this testing… that would be embarrassing...

I used the TIFF file from Uwe Steinmueller's test image for
comparisons to take my monitor profile out of the evaluation.

Well, there are some excellent test images (if I do say so myself) built right into the Datacolor apps that have the added advantage of being in the apps, for viewing and test prints. Using them for your final cross tests of the profiles, once you are happy with them from out app, in Photoshop or Lightroom, or wherever you print, is a good idea for consistency.

C. David Tobie

Global Product Technology Manager



Datacolor
5 Princess Road

Lawrenceville, NJ 08648, USA

609.924.2189


Phone: 207.685.9248

Mobile: 207.312.0448

Fax: 207.685.4455

Skype: cdtobie


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