Printing CMYK specifications

I wish to send my images to a printing house, and they state on their website that the CMYK settings has to be set to the following values:

C: 60%
M: 50%
Y: 50%
K: 100%

I do not understand what this means. Do I somehow have to calibrate my CMYK images with these values?

Can someone please shed some light onto what this means?

Thanks
Jacques
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'Ask not what your camera can do for you, but what you can do with your camera' - Jacques

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Jacques,

I've never seen it specified this way, so I'm just guessing. My guess is that the CMY values represent the ratio of C/M/Y to make a neutral. I'm not sure why they specified 100%K, except that possibly the specified amounts of CMY produce the equivalent of 100%K.

Sorry I couldn't be of more help.

It's meaningless. Ask them to supply you an ICC profile for the printing conditions. Good luck with that, but its the best way for anyone to define a printing process.
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Andrew Rodney
Author: Color Management for Photographers
The Digital Dog
http://www.digitaldog.net

Not being able to see the site you are referencing – those cmyk values look like their formula for black, sometimes referred to as "packed black".

You definitely need to find out from their production department.

-Best of luck.

I'm sure that's what it is. It's used for solid areas of black. We call it rich black, but I kind like packed. Your printer is your best resource. You should contact them directly.

-sean

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'A camera is a device that helps one see the world without it.' - Jacques

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