Re: ColorLife Matamerism issue

[CDTobie@aol.com]

In a message dated 9/19/01 9:11:34 AM, upton@chromix.com writes:

>>       I like the results I get using the Epson driver on PGPP. I would
>like
>>to get similar result on the new Colorlife. Would a profile you make for
>>Colorlife match the PGPP output?
>
>That is really tough to say. I would have to say that it would probably
>not.

A wise response Steve... since there is a factor you are probably unaware of 
here. ColorLife paper is metameric...

That's right. In attempting to reduce the orange shift issue that the 
1270/1280 are known for, Epson has created a paper that encapsulates the ink 
(to avoid contact with Ozone) and results in a print that (similar to Epson's 
encapsulated pigment inks) has differing color responses under differing 
light sources. Its not as extreme as the 2000p shift, but I was able to 
demonstrate it to Epson reps in their own booth the day the paper was 
introduced by moving their own image with a blue sky from the general show 
lighting, where the sky was Cyan, to Epson's spot lighting, where it was a 
purply blue.

So when its asked if a given profile will make ColorLife paper match PGPP, 
the answer has to be: under what light source?

C. David Tobie
Design Cooperative
CDTobie@designcoop.com
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