Re: Who Does the Separations
Re: Who Does the Separations
- Subject: Re: Who Does the Separations
- From: "Robert J. Hennessey" <email@hidden>
- Date: Thu, 04 Jan 2007 09:00:41 -0500
- Thread-topic: Who Does the Separations
Title: Re: Who Does the Separations
Hello,
In the previous analogue photographic system of ink reproduction the initial separations were made through red, green and blue filters and from those very carefully made gray balanced separations the final halftone films to make the printing plates were made. Our present mathematical system is the same, although much more powerful and potentially more accurate in terms of color fidelity. It was, and still is, a photographic technique that we use to translate the image onto the printing press.
Some of the edits we separators make are in RGB or LAB and finally in CMYK. If you work in an RGB system, such as ink jet printing, then you may well not directly use CMYK edits. However, all color ink on paper printing processes employ a CMYK ink or dye set to make the picture. I’m aware of hybrid techniques that use additional colors, and in the case of Dye Transfer, fewer dyes. But the essential printing inks are CMYK. This is the final edit space and is useful because each color channel can be adjusted individually without affecting any other channel. If CMYK is the destination of your image, then it will help insure your success to be familiar with what the CMYK numbers mean. There are many very good texts to use as a guide.
Who should make the separations? Anyone who is prepared to see the process through and understands each step along the way. It is not my experience in my work to encounter a printer who would intentionally interfere with my preparation. If I cannot guide my work through and be confidant in the final printed result, then I don’t accept the job.
Best Wishes,
Robert
--
Robert J. Hennessey Photography
Separations for Offset Printing
92 High Street
Middletown, Connecticut 06457
860 347 6999
On 1/4/07 12:08 AM, "email@hidden" <email@hidden> wrote:
> ----- Original Message -----
> From: "Roger Breton" >
>> CMYK is still tought of as THE reference color space by printers of
>> all
>> kinds. Why? Because the CMYK numbers appear tangible to anyone whereas
>> the
>> RGB numbers are still not well understood by the majority, let alone
>> the ...snip
>
> As a photographer and lab person CMYK is anything but tangible to me.
> Each RGB color can only be made one way and the same goes for HSB or
> LAB. That's simple. CMYK is a strange illusion, a kludge if you will,
> and very complex by comparison. You really don't know what's in a CMYK
> color unless you examine it in detail and if more inks are used, the
> worse it is.
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden