Greyscale or CMYK for printed B&W thumbnails?

BM
Posted By
bob_miller
Jan 27, 2006
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401
Replies
1
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Closed
Apologies for what is probably a newbie question; a
few hours of Googling has not turned up a satisfying
answer; this is one of two groups which looks likely
to hold the answer…

I am in the process of doing a layout in Illustrator
for a CD insert to be offset-printed in CMYK. All
photos for the layout were shot in black-and-white,
scanned into Photoshop at 300dpi RGB and converted
to CMYK, resized and cropped and saved as .tif
before placing in the Illustrator layout.

Particularly for the smaller-scaled images (think
head-and-shoulders at 1.2 inches square), I am
wondering whether it is best to convert these images
to K-only greyscale before shipping to the print
shop; I like the depth of the CMYK *on the screen*,
and the images are placed on a rich black (65/53/51/100) background, but I worry that normal plate
misregistration will do hideous things to the images
in print.

What is the best practice? I can live with the blacks
of the images being less deep than the matte they are
placed on, if the alternative is likely to be a mess.

Bob

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Mike Russell
Jan 27, 2006
wrote in message
Apologies for what is probably a newbie question; a
few hours of Googling has not turned up a satisfying
answer; this is one of two groups which looks likely
to hold the answer…

I am in the process of doing a layout in Illustrator
for a CD insert to be offset-printed in CMYK. All
photos for the layout were shot in black-and-white,
scanned into Photoshop at 300dpi RGB and converted
to CMYK, resized and cropped and saved as .tif
before placing in the Illustrator layout.

Particularly for the smaller-scaled images (think
head-and-shoulders at 1.2 inches square), I am
wondering whether it is best to convert these images
to K-only greyscale before shipping to the print
shop; I like the depth of the CMYK *on the screen*,
and the images are placed on a rich black (65/53/51/100) background, but I worry that normal plate
misregistration will do hideous things to the images
in print.

What is the best practice? I can live with the blacks
of the images being less deep than the matte they are
placed on, if the alternative is likely to be a mess.

From: "Mike Russell"
Subject: Re: Greyscale or CMYK for printed B&W thumbnails? Date: Friday, January 27, 2006 2:22 PM

wrote in message
Apologies for what is probably a newbie question; a
few hours of Googling has not turned up a satisfying
answer; this group looks chock-full of experts.

I am in the process of doing a layout in Illustrator
for a CD insert to be offset-printed in CMYK. All
photos for the layout were shot in black-and-white,
scanned into Photoshop at 300dpi RGB and converted
to CMYK, resized and cropped and saved as .tif
before placing in the Illustrator layout.

Particularly for the smaller-scaled images (think
head-and-shoulders at 1.2 inches square), I am
wondering whether it is best to convert these images
to K-only greyscale before shipping to the print
shop; I like the depth of the CMYK *on the screen*,
and the images are placed on a rich black (65/53/51/100) background, but I worry that normal plate
misregistration will do hideous things to the images
in print.

What is the best practice? I can live with the blacks
of the images being less deep than the matte they are
placed on, if the alternative is likely to be a mess.

For photographs registration is not going to be much of an issue, since there are generally no harsh edges in the image. OTOH the black background will show fringes unless you choke magenta and cyan.

PS – this is one of those occasions when cross posting is good. —

Mike Russell
www.curvemeister.com

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