[argyllcms] Profile Epson printer: Eye-one Photo LT or Design LT ?

Hi,

I am currently looking around to buy an X-rite Eye-one spectrometer. Based on 
the feedback I got from this list, I have been looking for the Photo LT 
edition.

I noticed there is also a more expensive edition, Design LT. The difference 
seems to be that the Design LT can be used for profiling CYMK printers 
(in "limited mode" whatever that may mean, while the Photo LT would only be 
useable for RGB printers (also in "limited mode"). Is this a limitation of 
the included spectrometer, or just the software bundled with it ? And what is 
meant with this "limited mode" ?

I am asking because I don't know which one I should buy for my printer. My 
Epson Stylus Photo 950 is a 6-color inkjet printer (Cyan, Light-Cyan, 
Magenta, Light-Magenta, Yellow and Black). I would assume then that the 
printer is a CMYK printer.

Also, I believe I read in the Argyll CMS documentation that what really 
matters is the  Driver's color space, whether the driver expects CMYK or RGB 
input. Or did I misunderstand ?

I am using the Gutenprint drivers on linux for my printer. And I think this 
driver works in the CMYK color space, because I can tweak various cmyk 
density options in the advanced driver settings. But I don't know for sure. 
Anyone else know this ?

One more question here. The Argyll documentation mentions that it can only 
profile three color CMYK, but my printer appears to use five. Does that mean 
I can't profile this printer with Argyll ?

Thank you,

Geert Janssens

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