When transparencies are scanned by scanning companies, isn't it standard
to scan the transparencies in RGB mode?

My latest 300-dpi drum scans of four-by-five-inch and eight-by-ten-inch
transparencies were drum-scanned in CMYK mode with embedded Euroscale V2
Coated colour profiles.

All of the previous scans I had made were scanned in RGB (with embedded
Adobe RGB color profiles) yet the president of the scanning company now
claims that CMYK (with embeddedEuroscale CMYK) is the company's standard
scanning mode, and that the company hasn't always been able to scan in
RGB, which sounds like bullshit to me.

I'm having a hard time adjusting my colours on my screen in CMYK because
the colours on my RBG screen don't match the printed CMYK output on my
inkjet printers.

Also, I have to convert the CMYK files to RGB for use on my Web site,
which means that some the colours will be clipped, which means the
images on my Web site won't look optimum.

When I ordered the scanning job, it didn't even occur to me that they
would scan the transparencies in CMYK mode, so I didn't specify RGB.

Robert

In article <8Xm8i.67236$Xh3.31085@edtnps90>,
Robert Montgomery <info-block@stargate_tech.net> wrote:

better to do RGB. larger gamut of colours and smaller file sizes.

Robert Montgomery wrote:

You will always have trouble with this unless you do some serious
calibration for that specific inkjet printer. Most, if not all, inkjet
printer drivers will convert CMYK data to RGB, and then back into CMYK
for output. Inkjet printers expect RGB data, not cmyk. Therefore, you
are allowing the conversion between color models to be made twice, using
a less than optimal conversion process each time.

This is not true when you are sending the CMYK data to a good Postscript
RIP, which expects CMYK data for outputting. High-end, high resolution
drum scans are usually for offset output, at least in my experience,

I wouldn't say that RGB mode is a standard color model for high
resolution scans from a service bureau, especially one that caters to
the print industry. Probably the opposite is true. I guess the answer is
to know what your final output is going to be, and specify what you need.

--
Fred Doyle

Fred Doyle wrote:

Thanks, Fred and Woods.

I'm printing without Postscript to three inkjet printers.

I've been printing this way - without Postscript - with excellent
results for about five years.

The two inkjet printers whose color output matters to me are my
wide-format Epson Stylus Photo 7600 and 2400 inkjet printers.

The final output from my two high-end high-end printers is art prints on
fine art papers, for display in art galleries.

Robert

Robert Montgomery wrote:

Also, after adjusting my TIFF files for inkjet printing, I'm going to
make JPEGs from them to publish on my Web site.

Robert