Color Management and Printing Workshop


Almost all of us nowadays are either printing our own photos at home or sending our digital files to a lab for printing. Either way, if our monitors aren’t correctly calibrated, we won’t like our end result.

With the fair coming up next month, and everyone getting their prints ready, this resulted in a nice turnout for this workshop.

Dennis gave a great presentation about color management and various methods of printing along with color prints so members could actually see the (or not) the differences in printing methods. There were many questions asked since we are all at various levels and Dennis was gracious with sharing his knowledge. Other members also shared their expertise which made for a great educational night, perfect timing for our fair entries!

Some of the differences were difficult to detect, but others were quite obvious.

We learned how and where to get the profiles we need and how to install them on our computers, the color space we should set our cameras to and even some tricks for sizing images to be printed at a lab.

Many of the attendees had questions which were all clearly answered.

It appears that the club’s Calibration Spyder was one of our better investments as quite a few of our members have already used it, and there’s now a waiting list for members who want to use it.

Dennis also shared his tips on some of the various photo paper and where to purchase it on the Internet.

We would like to thank Dennis for the addendum he put out to our members the next morning which answered some questions, cleared up some confusing issues followed up the following day with an addendum with a information

By the end of the workshop we had 36 members and visitors attended the workshop.

Thanks to Dennis for another great workshop.

You can download the workshop handout here.




During during this workshop, Don Bennett brought up the point that Dry Creek Photo ( says to convert your image file to the Costco profile before sending it to Costco. Sue Craft said that she couldn't see any differences and uses sRGB for her prints. In my ignorance I had Costco print my test prints using Adobe RGB.

To resolve the issue I sent three 8x12" test prints (PDI Test Image] to Costco in sRGB, Adobe RGB and Costco profile, Costo-CA-Lancaster-GLS. The differences were not major but Costco's red was more saturated than sRGB or Adobe RGB. This was also confirmed by viewing the red color patch in the GetagMacbeth chart in the Costco profiled test image in PhotoShop. The red color numbers were: 191 for Adobe RGB, 224 for sRGB and 255 (saturated) for the Costco profile. I also talked to the Costco technician and she said that "Professionals" convert to the Costco profiles.

The bottom line is that for best results after you edit and size your image in CS3, you should go to: Edit/Convert to Profile.../select the appropriate Costco profile, "relative colorimetric", check "black point compensation" and "dither". Save your image to JPEG and send to Cosctco.

I forgot to show 2D color gamut charts of the Canon, Epson and Fuji papers I displayed last night. You can download them here. As you can see, the color gamut of the Fuji paper is somewhat less than the inkjet papers.


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